Malešev, Dušan

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  • Malešev, Dušan (22)
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Author's Bibliography

Fluorometric determination of hesperidin in orange juices available on Serbian market

Pavun, Leposava; Jelikić-Stankov, Milena; Malešev, Dušan; Uskoković-Marković, Snežana; Dimitrić-Marković, Jasmina; Đurđević, Predrag; Đikanović, Daniela

(Univerzitet u Kragujevcu - Agronomski fakultet, Čačak, 2012)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Jelikić-Stankov, Milena
AU  - Malešev, Dušan
AU  - Uskoković-Marković, Snežana
AU  - Dimitrić-Marković, Jasmina
AU  - Đurđević, Predrag
AU  - Đikanović, Daniela
PY  - 2012
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1824
AB  - The spectrofluorometric method based on fluorescence ability of aluminium - hesperidin complex for the determination of hesperidin in orange juice is proposed. The linearity range of hesperidin in methanolicaqueous solution was 0.08 - 18.0 μg/mL with LOD and LOQ values as 0.023 μg/mL and 0.070 μg/mL, respectively, and recovery values in the range 97.8 - 99.7 %. Method was simplified by omitting any of surphactant agents usually applied in similar procedures, and successfully applied for the determination of hesperidin in orange juices commercially available on the Serbian market.
AB  - U radu je predložena spektrofluorimetrijska metoda za određivanje sadržaja hesperidina u sokovima od pomorandže zasnovana na sposobnosti fluorescencije kompleksa aluminijum - hesperidin. Utvrđena je oblast linearnosti za određivanje hesperidina u metanolno-vodenim rastvora od 0.08 do 18.0 μg/mL, pri čemu je LOD= 0.023 μg/mL i LOQ= 0.070 μg/mL, a recovery vrednost 97.8 - 99.7 %. Metoda je pojednostavljena izostavljanjem često korišćenih površinski aktivnih materija koje se koriste u sličnim procedurama i uspešno je primenjena za određivanje sadržaja hesperidina u sokovima od pomorandže prisutnim na tržištu Srbije.
PB  - Univerzitet u Kragujevcu - Agronomski fakultet, Čačak
T2  - Acta agriculturae Serbica
T1  - Fluorometric determination of hesperidin in orange juices available on Serbian market
T1  - Fluorometrijsko određivanje hesperidina u sokovima od pomorandže prisutnim na tržištu Srbije
VL  - 17
IS  - 34
SP  - 93
EP  - 103
UR  - https://hdl.handle.net/21.15107/rcub_farfar_1824
ER  - 
@article{
author = "Pavun, Leposava and Jelikić-Stankov, Milena and Malešev, Dušan and Uskoković-Marković, Snežana and Dimitrić-Marković, Jasmina and Đurđević, Predrag and Đikanović, Daniela",
year = "2012",
abstract = "The spectrofluorometric method based on fluorescence ability of aluminium - hesperidin complex for the determination of hesperidin in orange juice is proposed. The linearity range of hesperidin in methanolicaqueous solution was 0.08 - 18.0 μg/mL with LOD and LOQ values as 0.023 μg/mL and 0.070 μg/mL, respectively, and recovery values in the range 97.8 - 99.7 %. Method was simplified by omitting any of surphactant agents usually applied in similar procedures, and successfully applied for the determination of hesperidin in orange juices commercially available on the Serbian market., U radu je predložena spektrofluorimetrijska metoda za određivanje sadržaja hesperidina u sokovima od pomorandže zasnovana na sposobnosti fluorescencije kompleksa aluminijum - hesperidin. Utvrđena je oblast linearnosti za određivanje hesperidina u metanolno-vodenim rastvora od 0.08 do 18.0 μg/mL, pri čemu je LOD= 0.023 μg/mL i LOQ= 0.070 μg/mL, a recovery vrednost 97.8 - 99.7 %. Metoda je pojednostavljena izostavljanjem često korišćenih površinski aktivnih materija koje se koriste u sličnim procedurama i uspešno je primenjena za određivanje sadržaja hesperidina u sokovima od pomorandže prisutnim na tržištu Srbije.",
publisher = "Univerzitet u Kragujevcu - Agronomski fakultet, Čačak",
journal = "Acta agriculturae Serbica",
title = "Fluorometric determination of hesperidin in orange juices available on Serbian market, Fluorometrijsko određivanje hesperidina u sokovima od pomorandže prisutnim na tržištu Srbije",
volume = "17",
number = "34",
pages = "93-103",
url = "https://hdl.handle.net/21.15107/rcub_farfar_1824"
}
Pavun, L., Jelikić-Stankov, M., Malešev, D., Uskoković-Marković, S., Dimitrić-Marković, J., Đurđević, P.,& Đikanović, D.. (2012). Fluorometric determination of hesperidin in orange juices available on Serbian market. in Acta agriculturae Serbica
Univerzitet u Kragujevcu - Agronomski fakultet, Čačak., 17(34), 93-103.
https://hdl.handle.net/21.15107/rcub_farfar_1824
Pavun L, Jelikić-Stankov M, Malešev D, Uskoković-Marković S, Dimitrić-Marković J, Đurđević P, Đikanović D. Fluorometric determination of hesperidin in orange juices available on Serbian market. in Acta agriculturae Serbica. 2012;17(34):93-103.
https://hdl.handle.net/21.15107/rcub_farfar_1824 .
Pavun, Leposava, Jelikić-Stankov, Milena, Malešev, Dušan, Uskoković-Marković, Snežana, Dimitrić-Marković, Jasmina, Đurđević, Predrag, Đikanović, Daniela, "Fluorometric determination of hesperidin in orange juices available on Serbian market" in Acta agriculturae Serbica, 17, no. 34 (2012):93-103,
https://hdl.handle.net/21.15107/rcub_farfar_1824 .

Development and validation of a fluorometric method for the determination of hesperidin in human plasma and pharmaceutical forms

Pavun, Leposava; Dimitrić-Marković, Jasmina; Đurđević, Predrag; Jelikić-Stankov, Milena; Đikanović, Daniela; Ćirić, Andrija; Malešev, Dušan

(Srpsko hemijsko društvo, Beograd, 2012)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Dimitrić-Marković, Jasmina
AU  - Đurđević, Predrag
AU  - Jelikić-Stankov, Milena
AU  - Đikanović, Daniela
AU  - Ćirić, Andrija
AU  - Malešev, Dušan
PY  - 2012
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1821
AB  - A fluorometric method, based on the fluorescence properties of the aluminium(III)-hesperidin complex, for the determination of hesperidin in human plasma and pharmaceutical forms has been developed and validated. The complex shows a strong emission in the presence of the surfactant betain sulphonate SB 12 at 476 nm with excitation at 390 nm. The linearity range for pharmaceutical forms of hesperidin was 0.06-24.4 μg mL-1 with a limit of detection, LOD, of 0.016 μg mL-1 and a limit of quantification, LOQ, of 0.049 μg mL-1. Recovery values in the range 99.3-99.7 % indicate good accuracy of the method. A linear dependence of the intensity of fluorescence of the complex on the concentration of hesperidin in plasma was obtained in concentration range from 0.1-12.2 μg mL-1. The LOD was 0.032 μg mL-1 while LOQ was 0.096 μg mL-1. Recovery values were in the range 98.4-99.8 %. The reliability of the method was checked by an LC-MS/MS method for plasma samples and an HPLC/UV method for tablets with direct determination of hesperidin after separation. Linearity range in determination of hesperidin in pharmaceutical forms was obtained in the range from 0.05 to 10.00 μg mL-1. The LOD was 0.01 μg mL-1 and the LOQ was 0.03 μg mL-1. The linearity range for the determination of hesperidin in plasma was 0.02-10.00 μg mL-1 with an LOD 0.005 μg mL-1 and an LOQ of 0.015 μg mL-1. The good agreement between the two methods indicates the usability of the proposed fluorometric method for the simple, precise and accurate determination of hesperidin in clinical and quality control laboratories.
AB  - Razvijena je fluorimetrijska metoda za određivanje hesperidina u humanom serumu i farmaceutskim preparatima koja se zasniva na fluorescenciji kompleksa aluminijum(III)-hesperidin. Kompleks pokazuje intenzivnu fluorescenciju u prisustvu surfaktanta SB 12 na 476 nm prilikom ekscitacije na 390 nm. Linearna zavisnost intenziteta fluorescencije od koncentracije pri određivanju hesperidina u farmaceutskim preparatima dobijena je u koncentracionom opsegu 0,06-24,4 μg mL-1 sa granicom detekcije od 0,016 μg mL-1 i granicom kvantifikacije od 0,049 μg mL-1. Dobijene 'recovery' vrednosti u intervalu 99,3-99,7 % pokazuju veliku preciznost metode. Linearna zavisnost intenziteta fluorescencije kompeksa od koncentacije hesperidina dobijena je u koncentracionom opsegu 0,1-12,2 μg mL-1 sa granicom detekcije od 0,032 μg mL-1 i granicom kvantifikacije od 0,096 μg mL-1. 'Recovery' vrednosti su dobijene u opsegu 98,4 do 99,8 %. Pouzdanost metode proverena je LC-MS/MS metodom za određivanje hesperidina u serumu, a HPLC/UV metodom proverena je pouzdanost prilikom određivanja hesperidina u farmaceutskim preparatima. Linearna zavisnost pri određivanju hesperidina u farmaceutskim preparatima dobijena je u intervalu 0,05-10,00 μg mL-1. Granica detekcije je iznosila 0,01, a granica kvantifikacije je 0,03 μg mL-1. Linearna zavisnost pri određivanju hesperidina u humanom serumu je dobijena u intervalu 0,02-10,00 μg mL-1 sa granicom detekcije od 0,005 i granicom kvantifikacije od 0,015 μg mL-1. Dobro slaganje između ove dve metode pokazuje primenljivost fluorimetrijske metode u kliničkim laboratorijama i laboratorijama za kontrolu kvaliteta. Predložena fluorimetrijska metoda je jednostavna, pouzdana i precizna za određivanje hesperidina u humanom serumu i farmaceutskim preparatima.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Development and validation of a fluorometric method for the determination of hesperidin in human plasma and pharmaceutical forms
T1  - Razvoj i validacija fluorimetrijske metode za određivanje hesperidina u humanom serumu i farmaceutskim preparatima
VL  - 77
IS  - 11
SP  - 1625
EP  - 1640
DO  - 10.2298/JSC111005060P
ER  - 
@article{
author = "Pavun, Leposava and Dimitrić-Marković, Jasmina and Đurđević, Predrag and Jelikić-Stankov, Milena and Đikanović, Daniela and Ćirić, Andrija and Malešev, Dušan",
year = "2012",
abstract = "A fluorometric method, based on the fluorescence properties of the aluminium(III)-hesperidin complex, for the determination of hesperidin in human plasma and pharmaceutical forms has been developed and validated. The complex shows a strong emission in the presence of the surfactant betain sulphonate SB 12 at 476 nm with excitation at 390 nm. The linearity range for pharmaceutical forms of hesperidin was 0.06-24.4 μg mL-1 with a limit of detection, LOD, of 0.016 μg mL-1 and a limit of quantification, LOQ, of 0.049 μg mL-1. Recovery values in the range 99.3-99.7 % indicate good accuracy of the method. A linear dependence of the intensity of fluorescence of the complex on the concentration of hesperidin in plasma was obtained in concentration range from 0.1-12.2 μg mL-1. The LOD was 0.032 μg mL-1 while LOQ was 0.096 μg mL-1. Recovery values were in the range 98.4-99.8 %. The reliability of the method was checked by an LC-MS/MS method for plasma samples and an HPLC/UV method for tablets with direct determination of hesperidin after separation. Linearity range in determination of hesperidin in pharmaceutical forms was obtained in the range from 0.05 to 10.00 μg mL-1. The LOD was 0.01 μg mL-1 and the LOQ was 0.03 μg mL-1. The linearity range for the determination of hesperidin in plasma was 0.02-10.00 μg mL-1 with an LOD 0.005 μg mL-1 and an LOQ of 0.015 μg mL-1. The good agreement between the two methods indicates the usability of the proposed fluorometric method for the simple, precise and accurate determination of hesperidin in clinical and quality control laboratories., Razvijena je fluorimetrijska metoda za određivanje hesperidina u humanom serumu i farmaceutskim preparatima koja se zasniva na fluorescenciji kompleksa aluminijum(III)-hesperidin. Kompleks pokazuje intenzivnu fluorescenciju u prisustvu surfaktanta SB 12 na 476 nm prilikom ekscitacije na 390 nm. Linearna zavisnost intenziteta fluorescencije od koncentracije pri određivanju hesperidina u farmaceutskim preparatima dobijena je u koncentracionom opsegu 0,06-24,4 μg mL-1 sa granicom detekcije od 0,016 μg mL-1 i granicom kvantifikacije od 0,049 μg mL-1. Dobijene 'recovery' vrednosti u intervalu 99,3-99,7 % pokazuju veliku preciznost metode. Linearna zavisnost intenziteta fluorescencije kompeksa od koncentacije hesperidina dobijena je u koncentracionom opsegu 0,1-12,2 μg mL-1 sa granicom detekcije od 0,032 μg mL-1 i granicom kvantifikacije od 0,096 μg mL-1. 'Recovery' vrednosti su dobijene u opsegu 98,4 do 99,8 %. Pouzdanost metode proverena je LC-MS/MS metodom za određivanje hesperidina u serumu, a HPLC/UV metodom proverena je pouzdanost prilikom određivanja hesperidina u farmaceutskim preparatima. Linearna zavisnost pri određivanju hesperidina u farmaceutskim preparatima dobijena je u intervalu 0,05-10,00 μg mL-1. Granica detekcije je iznosila 0,01, a granica kvantifikacije je 0,03 μg mL-1. Linearna zavisnost pri određivanju hesperidina u humanom serumu je dobijena u intervalu 0,02-10,00 μg mL-1 sa granicom detekcije od 0,005 i granicom kvantifikacije od 0,015 μg mL-1. Dobro slaganje između ove dve metode pokazuje primenljivost fluorimetrijske metode u kliničkim laboratorijama i laboratorijama za kontrolu kvaliteta. Predložena fluorimetrijska metoda je jednostavna, pouzdana i precizna za određivanje hesperidina u humanom serumu i farmaceutskim preparatima.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Development and validation of a fluorometric method for the determination of hesperidin in human plasma and pharmaceutical forms, Razvoj i validacija fluorimetrijske metode za određivanje hesperidina u humanom serumu i farmaceutskim preparatima",
volume = "77",
number = "11",
pages = "1625-1640",
doi = "10.2298/JSC111005060P"
}
Pavun, L., Dimitrić-Marković, J., Đurđević, P., Jelikić-Stankov, M., Đikanović, D., Ćirić, A.,& Malešev, D.. (2012). Development and validation of a fluorometric method for the determination of hesperidin in human plasma and pharmaceutical forms. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 77(11), 1625-1640.
https://doi.org/10.2298/JSC111005060P
Pavun L, Dimitrić-Marković J, Đurđević P, Jelikić-Stankov M, Đikanović D, Ćirić A, Malešev D. Development and validation of a fluorometric method for the determination of hesperidin in human plasma and pharmaceutical forms. in Journal of the Serbian Chemical Society. 2012;77(11):1625-1640.
doi:10.2298/JSC111005060P .
Pavun, Leposava, Dimitrić-Marković, Jasmina, Đurđević, Predrag, Jelikić-Stankov, Milena, Đikanović, Daniela, Ćirić, Andrija, Malešev, Dušan, "Development and validation of a fluorometric method for the determination of hesperidin in human plasma and pharmaceutical forms" in Journal of the Serbian Chemical Society, 77, no. 11 (2012):1625-1640,
https://doi.org/10.2298/JSC111005060P . .
10
5
10

Spectrophotometric study of uranyl - orciprenaline complex and its application for orciprenaline determination in pharmaceutical preparations

Pavun, Leposava; Uskoković-Marković, Snežana; Malešev, Dušan

(Faculty of Technology, University in Tuzla, 2011)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Uskoković-Marković, Snežana
AU  - Malešev, Dušan
PY  - 2011
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5063
AB  - ABSTRACT The    composition    and    stability    constant    of    UO2(II)-orciprenaline    complex    were    determined    using spectrophotometric  methods  and  pH  measurements.  It was  found  that  uranyl  ion  and  orciprenaline  form  a 1:1 complex  in  the  pH  region  2.50  -  5.00,  with  apsorption  maximum  at  360.4  nm.  The  thermodynamic  stabilityconstant  at  room  temperature  of  the  UO2(II)-orciprenaline  complex  is  logβ01  =  7.52  and ∆G01=  -42.9  kJ  mol-1.   A  simple,  accurate,  sensitive  and  validated  method was  developed  for  the  spectrophotometric  determination  of orciprenaline.  A  linear  dependence  at  360.4  nm  of  the  absorbance  on  the  concentration  of  orciprenaline  was obtained in the range  from 0.0020 mol  L-1 to 0.0245 mol  L-1  using a  solution of   0.025 mol dm-3 UO2(NO3)2 at pH  3.90.  The  LOD  was  0.00052  mol  L-1  and  LOQ  was  0.00174  mol  L-1.  Recovery  was  99.30%  while  the measurement error was 2.02 %.
PB  - Faculty of Technology, University in Tuzla
T2  - Journal Technologica Acta
T1  - Spectrophotometric study of uranyl - orciprenaline complex and its application for orciprenaline determination in pharmaceutical preparations
VL  - 4
IS  - 2
UR  - https://hdl.handle.net/21.15107/rcub_farfar_5063
ER  - 
@article{
author = "Pavun, Leposava and Uskoković-Marković, Snežana and Malešev, Dušan",
year = "2011",
abstract = "ABSTRACT The    composition    and    stability    constant    of    UO2(II)-orciprenaline    complex    were    determined    using spectrophotometric  methods  and  pH  measurements.  It was  found  that  uranyl  ion  and  orciprenaline  form  a 1:1 complex  in  the  pH  region  2.50  -  5.00,  with  apsorption  maximum  at  360.4  nm.  The  thermodynamic  stabilityconstant  at  room  temperature  of  the  UO2(II)-orciprenaline  complex  is  logβ01  =  7.52  and ∆G01=  -42.9  kJ  mol-1.   A  simple,  accurate,  sensitive  and  validated  method was  developed  for  the  spectrophotometric  determination  of orciprenaline.  A  linear  dependence  at  360.4  nm  of  the  absorbance  on  the  concentration  of  orciprenaline  was obtained in the range  from 0.0020 mol  L-1 to 0.0245 mol  L-1  using a  solution of   0.025 mol dm-3 UO2(NO3)2 at pH  3.90.  The  LOD  was  0.00052  mol  L-1  and  LOQ  was  0.00174  mol  L-1.  Recovery  was  99.30%  while  the measurement error was 2.02 %.",
publisher = "Faculty of Technology, University in Tuzla",
journal = "Journal Technologica Acta",
title = "Spectrophotometric study of uranyl - orciprenaline complex and its application for orciprenaline determination in pharmaceutical preparations",
volume = "4",
number = "2",
url = "https://hdl.handle.net/21.15107/rcub_farfar_5063"
}
Pavun, L., Uskoković-Marković, S.,& Malešev, D.. (2011). Spectrophotometric study of uranyl - orciprenaline complex and its application for orciprenaline determination in pharmaceutical preparations. in Journal Technologica Acta
Faculty of Technology, University in Tuzla., 4(2).
https://hdl.handle.net/21.15107/rcub_farfar_5063
Pavun L, Uskoković-Marković S, Malešev D. Spectrophotometric study of uranyl - orciprenaline complex and its application for orciprenaline determination in pharmaceutical preparations. in Journal Technologica Acta. 2011;4(2).
https://hdl.handle.net/21.15107/rcub_farfar_5063 .
Pavun, Leposava, Uskoković-Marković, Snežana, Malešev, Dušan, "Spectrophotometric study of uranyl - orciprenaline complex and its application for orciprenaline determination in pharmaceutical preparations" in Journal Technologica Acta, 4, no. 2 (2011),
https://hdl.handle.net/21.15107/rcub_farfar_5063 .

Spectrofluorimetric and HPLC Determination of Morin in Human Serum

Pavun, Leposava; Đikanović, Daniela; Đurđević, Predrag; Jelikić-Stankov, Milena; Malešev, Dušan; Ćirić, Andrija

(Slovensko Kemijsko Drustvo, Ljubljana, 2009)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Đikanović, Daniela
AU  - Đurđević, Predrag
AU  - Jelikić-Stankov, Milena
AU  - Malešev, Dušan
AU  - Ćirić, Andrija
PY  - 2009
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1205
AB  - Morin is a flavonol antioxidant. In ethanol-water mixtures (70 wt% of ethanol) it reacts with Al(3+) to give Al(Morin)(2) in the pH range 3-6. The conditional stability constant of this complex at 298 K was found to be log beta(2) = 16.96 +/- 0.02 at pH 4.40. The complex shows strong fluorescence emission at 500 nm upon excitation at 410 nm. The fluorescence intensity is pH dependent with maximum emission at pH 4.40. Since the complexation reaction enhances the fluorescence of morin, this property was used for the determination of morin in human serum. A linear dependence of the intensity of fluorescence of the complex on the concentration of morin was obtained in morin concentration range from 1.5-30.5 ng mL(-1), relative standard error of measurements was 1.4%. The LOD was 0.02 ng mL(-1) while LOQ was 1.0 ng mL(-1). Serum concentration of morin was also determined using HPLC as a reference method. A C-18 Hypersil Gold AQ column was used with acetonitrile-0.1% v/v phosphoric acid (30:70% v/v) as the mobile phase at 1.0 mL min(-1) flow rate and UV detection at 250 nm. Acceptable relative standard errors (less than 5%) between determinations obtained by the two methods indicate that the fluorescence method is reliable.
PB  - Slovensko Kemijsko Drustvo, Ljubljana
T2  - Acta Chimica Slovenica
T1  - Spectrofluorimetric and HPLC Determination of Morin in Human Serum
VL  - 56
IS  - 4
SP  - 967
EP  - 972
UR  - https://hdl.handle.net/21.15107/rcub_farfar_1205
ER  - 
@article{
author = "Pavun, Leposava and Đikanović, Daniela and Đurđević, Predrag and Jelikić-Stankov, Milena and Malešev, Dušan and Ćirić, Andrija",
year = "2009",
abstract = "Morin is a flavonol antioxidant. In ethanol-water mixtures (70 wt% of ethanol) it reacts with Al(3+) to give Al(Morin)(2) in the pH range 3-6. The conditional stability constant of this complex at 298 K was found to be log beta(2) = 16.96 +/- 0.02 at pH 4.40. The complex shows strong fluorescence emission at 500 nm upon excitation at 410 nm. The fluorescence intensity is pH dependent with maximum emission at pH 4.40. Since the complexation reaction enhances the fluorescence of morin, this property was used for the determination of morin in human serum. A linear dependence of the intensity of fluorescence of the complex on the concentration of morin was obtained in morin concentration range from 1.5-30.5 ng mL(-1), relative standard error of measurements was 1.4%. The LOD was 0.02 ng mL(-1) while LOQ was 1.0 ng mL(-1). Serum concentration of morin was also determined using HPLC as a reference method. A C-18 Hypersil Gold AQ column was used with acetonitrile-0.1% v/v phosphoric acid (30:70% v/v) as the mobile phase at 1.0 mL min(-1) flow rate and UV detection at 250 nm. Acceptable relative standard errors (less than 5%) between determinations obtained by the two methods indicate that the fluorescence method is reliable.",
publisher = "Slovensko Kemijsko Drustvo, Ljubljana",
journal = "Acta Chimica Slovenica",
title = "Spectrofluorimetric and HPLC Determination of Morin in Human Serum",
volume = "56",
number = "4",
pages = "967-972",
url = "https://hdl.handle.net/21.15107/rcub_farfar_1205"
}
Pavun, L., Đikanović, D., Đurđević, P., Jelikić-Stankov, M., Malešev, D.,& Ćirić, A.. (2009). Spectrofluorimetric and HPLC Determination of Morin in Human Serum. in Acta Chimica Slovenica
Slovensko Kemijsko Drustvo, Ljubljana., 56(4), 967-972.
https://hdl.handle.net/21.15107/rcub_farfar_1205
Pavun L, Đikanović D, Đurđević P, Jelikić-Stankov M, Malešev D, Ćirić A. Spectrofluorimetric and HPLC Determination of Morin in Human Serum. in Acta Chimica Slovenica. 2009;56(4):967-972.
https://hdl.handle.net/21.15107/rcub_farfar_1205 .
Pavun, Leposava, Đikanović, Daniela, Đurđević, Predrag, Jelikić-Stankov, Milena, Malešev, Dušan, Ćirić, Andrija, "Spectrofluorimetric and HPLC Determination of Morin in Human Serum" in Acta Chimica Slovenica, 56, no. 4 (2009):967-972,
https://hdl.handle.net/21.15107/rcub_farfar_1205 .
17
20

Spectrophotometric investigation of the uranyl-phenylephrine system

Pavun, Leposava; Malešev, Dušan; Veselinović, Dragan S.

(Srpsko hemijsko društvo, Beograd, 2007)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Malešev, Dušan
AU  - Veselinović, Dragan S.
PY  - 2007
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1001
AB  - Using spectrophotometric methods and pH-metric measurements, it was found that the uranyl ion and phenylephrine form a 1:2 complex in the pH region 2.50-4.25 with two absorption maxima at 314.2 nm and 340.6 nm. The thermodynamic stability constant at I = 0 and T=298 K (room temperature) of the UO2(II)-phenylephrine complex, UO2(C9H12O2N)2, is log 0 β 2= 14.0 and ΔG2= -79.6 kJ mol-1. A linear dependence of the absorbance at 340.6 nm on the concentration of phenylephrine was obtained in the range from 0.0025 mol dm-3 to 0.0245 mol dm-3 using a solution of 0.025 mol dm-3 UO2(NO3)2 at pH = 3.90 and I = 0.075 mol dm-3. The measurement error was 2.1%. .
AB  - Primenom spektrofotometrijskih metoda i pH-metrijskih merenja utvrđeno je da UO2(II)-jon i fenilefrin grade 1:2 kompleks u oblasti rN 2,50 - 4,25 sa dva apsorpciona maksimuma na 314,2 nm i 340,6 nm. Termodinamička konstanta stabilnosti kompleksa UO2(II)-fenilefrin, UO2(C9H12O2N)2, na I = 0 i na sobnoj temperaturi (25°C) iznosi log 0 β 2 = 14,0, a ΔG2= = -79,6 kJ mol-1. Linearna zavisnost apsorbancije od koncentracije fenilefrina u vodenom rastvoru UO2(NO3)2 koncentracije 0,025 mol dm-3 na 340,6 nm dobijena je u intervalu 0,0025-0,0245 mol dm-3 na pH 3,90 i I = 0,075 mol dm-3. Greška merenja iznosi 2.1%. .
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Spectrophotometric investigation of the uranyl-phenylephrine system
T1  - Spektrofotometrijsko ispitivanje uranil-fenilefrin sistema
VL  - 72
IS  - 8-9
SP  - 799
EP  - 807
DO  - 10.2298/JSC0709799P
ER  - 
@article{
author = "Pavun, Leposava and Malešev, Dušan and Veselinović, Dragan S.",
year = "2007",
abstract = "Using spectrophotometric methods and pH-metric measurements, it was found that the uranyl ion and phenylephrine form a 1:2 complex in the pH region 2.50-4.25 with two absorption maxima at 314.2 nm and 340.6 nm. The thermodynamic stability constant at I = 0 and T=298 K (room temperature) of the UO2(II)-phenylephrine complex, UO2(C9H12O2N)2, is log 0 β 2= 14.0 and ΔG2= -79.6 kJ mol-1. A linear dependence of the absorbance at 340.6 nm on the concentration of phenylephrine was obtained in the range from 0.0025 mol dm-3 to 0.0245 mol dm-3 using a solution of 0.025 mol dm-3 UO2(NO3)2 at pH = 3.90 and I = 0.075 mol dm-3. The measurement error was 2.1%. ., Primenom spektrofotometrijskih metoda i pH-metrijskih merenja utvrđeno je da UO2(II)-jon i fenilefrin grade 1:2 kompleks u oblasti rN 2,50 - 4,25 sa dva apsorpciona maksimuma na 314,2 nm i 340,6 nm. Termodinamička konstanta stabilnosti kompleksa UO2(II)-fenilefrin, UO2(C9H12O2N)2, na I = 0 i na sobnoj temperaturi (25°C) iznosi log 0 β 2 = 14,0, a ΔG2= = -79,6 kJ mol-1. Linearna zavisnost apsorbancije od koncentracije fenilefrina u vodenom rastvoru UO2(NO3)2 koncentracije 0,025 mol dm-3 na 340,6 nm dobijena je u intervalu 0,0025-0,0245 mol dm-3 na pH 3,90 i I = 0,075 mol dm-3. Greška merenja iznosi 2.1%. .",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Spectrophotometric investigation of the uranyl-phenylephrine system, Spektrofotometrijsko ispitivanje uranil-fenilefrin sistema",
volume = "72",
number = "8-9",
pages = "799-807",
doi = "10.2298/JSC0709799P"
}
Pavun, L., Malešev, D.,& Veselinović, D. S.. (2007). Spectrophotometric investigation of the uranyl-phenylephrine system. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 72(8-9), 799-807.
https://doi.org/10.2298/JSC0709799P
Pavun L, Malešev D, Veselinović DS. Spectrophotometric investigation of the uranyl-phenylephrine system. in Journal of the Serbian Chemical Society. 2007;72(8-9):799-807.
doi:10.2298/JSC0709799P .
Pavun, Leposava, Malešev, Dušan, Veselinović, Dragan S., "Spectrophotometric investigation of the uranyl-phenylephrine system" in Journal of the Serbian Chemical Society, 72, no. 8-9 (2007):799-807,
https://doi.org/10.2298/JSC0709799P . .
1
2

Investigation of metal-flavonoid chelates and the determination of flavonoids via metal-flavonoid complexing reactions

Malešev, Dušan; Kuntić, Vesna

(Srpsko hemijsko društvo, Beograd, 2007)

TY  - JOUR
AU  - Malešev, Dušan
AU  - Kuntić, Vesna
PY  - 2007
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/998
AB  - Flavonoids constitute a large group of polyphenolic phytochemicals with antioxidant properties which are overwhelmingly exerted through direct free radical scavenging. Flavonoids also exhibit antioxidant properties through chelating with transition metals, primarily Fe(II), Fe(III) and Cu(II), which participate in reactions generating free radicals. Metal-flavonoid chelates are considerably more potent free radical scavengers than the parent flavonoids and play a prominent role in protecting from oxidative stress. To unravel the origin of their potent biological action extensive physico-chemical studies were undertaken to reveal the chemical structure, chelation sites, assess the impact of the metal/ligand ratio on the structure of the complexes and the capacity of flavonoids to bind metal ions. In spite of such extensive efforts, data on the composition, structure and complex-formation properties are incomplete and sometimes even contradictory. The aim of this paper is to give a personal account on the development of the field through a retrospective evaluation of our own research which covers approximately 40 complexes of flavonoids from different flavonoids subclasses (rutin, quercetin, 3-hydroxyflavone, morin and hesperidin) with several metal ions or groups and suggest directions for future research. Special emphasis will be given to the site of the central ion, the composition of the complexes, the role of pH in complex formation, the stability of metal-flavonoid complexes and their potential application for analytical purposes. .
AB  - Flavonoidi predstavljaju veliku grupu polifenolnih jedinjenja biljnog porekla, koji imaju antioksidantna svojstva zbog direktnog "hvatanja" slobodnih radikala. Antioksidantno dejstvo flavonoidi takođe ostvaruju stvaranjem helata sa jonima prelaznih metala, prvenstveno sa jonima Fe(II), Fe(III) i Cu(II), koji sami učestvuju u reakciji stvaranja slobodnih radikala. Helati metal-flavonoid su mnogo efikasniji "hvatači" slobodnih radikala od matičnih flavonoida i mogu zaštititi potencijalne mete u organizmu od oksidativnog stresa. Da bi se razjasnio mehanizam biološkog delovanja kompleksa metal-flavonoid, ispitivane su fizičko-hemijske karakteristike kompleksa: mesto vezivanja jona metala, zavisnost strukture kompleksa od odnosa metal/ligand, afinitet flavonoida za vezivanje metalnog jona, itd. Međutim, podaci o sastavu, strukturi i osobinama kompleksa su nekompletni i ponekad kontradiktorni. Stoga je namera ovog rada da kroz retrospektivu naših rezultata damo lični doprinos u ispitivanju metal-flavonoid kompleksa. U prikazanom revijalnom radu sakupljeni su svi naši rezultati o približno 40 kompleksa obrazovanih između pet flavonoida (rutin, kvercetin, 3-hidroksiflavon, morin i hesperidin) i većeg broja metalnih jona ili metalnih grupa. Istaknuti su podaci o mestu vezivanja centralnog jona u kompleksu, stehiometrijskom odnosu metal-ligand, uticaju pH na formiranje kompleksa i konstantama stabilnosti kompleksa. Takođe, u ovom radu prikazali smo i primenu metal-flavonoid kompleksa u analitičke svrhe. .
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Investigation of metal-flavonoid chelates and the determination of flavonoids via metal-flavonoid complexing reactions
T1  - Ispitivanje metal-flavonoid helata i određivanje flavonoida preko kompleksirajuće reakcije metal-flavonoid
VL  - 72
IS  - 10
SP  - 921
EP  - 939
DO  - 10.2298/JSC0710921M
ER  - 
@article{
author = "Malešev, Dušan and Kuntić, Vesna",
year = "2007",
abstract = "Flavonoids constitute a large group of polyphenolic phytochemicals with antioxidant properties which are overwhelmingly exerted through direct free radical scavenging. Flavonoids also exhibit antioxidant properties through chelating with transition metals, primarily Fe(II), Fe(III) and Cu(II), which participate in reactions generating free radicals. Metal-flavonoid chelates are considerably more potent free radical scavengers than the parent flavonoids and play a prominent role in protecting from oxidative stress. To unravel the origin of their potent biological action extensive physico-chemical studies were undertaken to reveal the chemical structure, chelation sites, assess the impact of the metal/ligand ratio on the structure of the complexes and the capacity of flavonoids to bind metal ions. In spite of such extensive efforts, data on the composition, structure and complex-formation properties are incomplete and sometimes even contradictory. The aim of this paper is to give a personal account on the development of the field through a retrospective evaluation of our own research which covers approximately 40 complexes of flavonoids from different flavonoids subclasses (rutin, quercetin, 3-hydroxyflavone, morin and hesperidin) with several metal ions or groups and suggest directions for future research. Special emphasis will be given to the site of the central ion, the composition of the complexes, the role of pH in complex formation, the stability of metal-flavonoid complexes and their potential application for analytical purposes. ., Flavonoidi predstavljaju veliku grupu polifenolnih jedinjenja biljnog porekla, koji imaju antioksidantna svojstva zbog direktnog "hvatanja" slobodnih radikala. Antioksidantno dejstvo flavonoidi takođe ostvaruju stvaranjem helata sa jonima prelaznih metala, prvenstveno sa jonima Fe(II), Fe(III) i Cu(II), koji sami učestvuju u reakciji stvaranja slobodnih radikala. Helati metal-flavonoid su mnogo efikasniji "hvatači" slobodnih radikala od matičnih flavonoida i mogu zaštititi potencijalne mete u organizmu od oksidativnog stresa. Da bi se razjasnio mehanizam biološkog delovanja kompleksa metal-flavonoid, ispitivane su fizičko-hemijske karakteristike kompleksa: mesto vezivanja jona metala, zavisnost strukture kompleksa od odnosa metal/ligand, afinitet flavonoida za vezivanje metalnog jona, itd. Međutim, podaci o sastavu, strukturi i osobinama kompleksa su nekompletni i ponekad kontradiktorni. Stoga je namera ovog rada da kroz retrospektivu naših rezultata damo lični doprinos u ispitivanju metal-flavonoid kompleksa. U prikazanom revijalnom radu sakupljeni su svi naši rezultati o približno 40 kompleksa obrazovanih između pet flavonoida (rutin, kvercetin, 3-hidroksiflavon, morin i hesperidin) i većeg broja metalnih jona ili metalnih grupa. Istaknuti su podaci o mestu vezivanja centralnog jona u kompleksu, stehiometrijskom odnosu metal-ligand, uticaju pH na formiranje kompleksa i konstantama stabilnosti kompleksa. Takođe, u ovom radu prikazali smo i primenu metal-flavonoid kompleksa u analitičke svrhe. .",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Investigation of metal-flavonoid chelates and the determination of flavonoids via metal-flavonoid complexing reactions, Ispitivanje metal-flavonoid helata i određivanje flavonoida preko kompleksirajuće reakcije metal-flavonoid",
volume = "72",
number = "10",
pages = "921-939",
doi = "10.2298/JSC0710921M"
}
Malešev, D.,& Kuntić, V.. (2007). Investigation of metal-flavonoid chelates and the determination of flavonoids via metal-flavonoid complexing reactions. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 72(10), 921-939.
https://doi.org/10.2298/JSC0710921M
Malešev D, Kuntić V. Investigation of metal-flavonoid chelates and the determination of flavonoids via metal-flavonoid complexing reactions. in Journal of the Serbian Chemical Society. 2007;72(10):921-939.
doi:10.2298/JSC0710921M .
Malešev, Dušan, Kuntić, Vesna, "Investigation of metal-flavonoid chelates and the determination of flavonoids via metal-flavonoid complexing reactions" in Journal of the Serbian Chemical Society, 72, no. 10 (2007):921-939,
https://doi.org/10.2298/JSC0710921M . .
3
261
202
271

Determination of flavonoids via metal-flavonoid complexing reactions

Malešev, Dušan; Kuntić, Vesna

(Savez farmaceutskih udruženja Srbije, Beograd, 2006)

TY  - CONF
AU  - Malešev, Dušan
AU  - Kuntić, Vesna
PY  - 2006
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/840
PB  - Savez farmaceutskih udruženja Srbije, Beograd
C3  - Arhiv za farmaciju
T1  - Determination of flavonoids via metal-flavonoid complexing reactions
T1  - Ispitivanje helata metal-flavonoid i određivanje flavonoida pomoću kompleksirajuće reakcije metal-flavonoid
VL  - 56
IS  - 5
SP  - 878
EP  - 879
UR  - https://hdl.handle.net/21.15107/rcub_farfar_840
ER  - 
@conference{
author = "Malešev, Dušan and Kuntić, Vesna",
year = "2006",
publisher = "Savez farmaceutskih udruženja Srbije, Beograd",
journal = "Arhiv za farmaciju",
title = "Determination of flavonoids via metal-flavonoid complexing reactions, Ispitivanje helata metal-flavonoid i određivanje flavonoida pomoću kompleksirajuće reakcije metal-flavonoid",
volume = "56",
number = "5",
pages = "878-879",
url = "https://hdl.handle.net/21.15107/rcub_farfar_840"
}
Malešev, D.,& Kuntić, V.. (2006). Determination of flavonoids via metal-flavonoid complexing reactions. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije, Beograd., 56(5), 878-879.
https://hdl.handle.net/21.15107/rcub_farfar_840
Malešev D, Kuntić V. Determination of flavonoids via metal-flavonoid complexing reactions. in Arhiv za farmaciju. 2006;56(5):878-879.
https://hdl.handle.net/21.15107/rcub_farfar_840 .
Malešev, Dušan, Kuntić, Vesna, "Determination of flavonoids via metal-flavonoid complexing reactions" in Arhiv za farmaciju, 56, no. 5 (2006):878-879,
https://hdl.handle.net/21.15107/rcub_farfar_840 .

Determination of quercetin in pharmaceutical formulations via its reaction with potassium-titanyloxalate: Determination of the stability constants of the quercetin-titanyloxalato complex

Kuntić, Vesna; Pejić, Nataša; Mićić, Svetlana; Vukojević, Vladana; Vujić, Zorica; Malešev, Dušan

(Srpsko hemijsko društvo, Beograd, 2005)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Pejić, Nataša
AU  - Mićić, Svetlana
AU  - Vukojević, Vladana
AU  - Vujić, Zorica
AU  - Malešev, Dušan
PY  - 2005
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/657
AB  - Asimple, rapid and accurate procedure for the quantitative determination of quercetin in its pure form and in formulations has been developed. The method is based on the spectrophotometric determination of a complex formed between quercetin and potassium titanyloxalate in 50 % ethanolic solutions. To characterize the quercetin titanyloxalato complex, the stability constants of the complex were determinated potentiometrically and spectrophotometrically at different temperatures (T = 26.0oC, 34oC and 39.0oC), as well as at different ionic strengths (I = 5.0x10-4 mol dm-3, 3.0x10-2 mol dm-3 and 6.0x10-2 mol dm-3) and the thermodynamic parameters were calculated. As quercetin is usually conjugated to vitamin C in pharmaceutical formulations, two procedures for the quantitative determination of quercetin by this complexing reaction were tested - both in the absence and presence of ascorbic acid. In both procedures, the Beer law was obeyed over the same concentration range of quercetin, i.e., 0.85 μg mL-1 - 16.9 μg mL-1. In the first procedure in the absence of ascorbic acid the molar absorptivity coefficient of the quercetin-titanyloxalate complex is a=2.49 x 104 mol-1 dm3 cm-1, Sandells sensitivity of the method is S = 1.35 x 10-2 μg cm-2 and the detection limit is d = 0.67 μg mL-1. Whereas, in the presence of ascorbic acid (second procedure) a = 3.04 x 104 mol-1 dm3 cm-1, S = 1.11 x 10-2 μg mL-1. The proposed method was verified for the determination of quercetin in pharmaceutical dosage forms.
AB  - Predložen je brz, jednostavan i tačan metod za određivanje kvercetina u farmaceutskim sirovinama i doziranim oblicima.Metod je baziran na spektrofotometrijskom određivanju kompleksa formiranog između kvercetina i kalijum-titaniloksalata u 50 % etanolu. Određene su konstante stabilnosti kvercetin titaniloksalatnog kompleksa potenciometrijski i spektrofotometrijski na različitim temperaturama (T = 26.0oC, 34oC and 39.0oC) i jonskim jačinama (I = 5.0x10-4 mol dm-3, 3.0x10-2 mol dm-3 and 6.0x10-2 mol dm-3) i izračunati su termodinamički parametri. Kako se kvercetin uobičajeno nalazi zajedno sa vitaminom C u doziranim oblicima, predložene su dve procedure za određivanje kvercetina: bez i u prisustvu askorbinske kiseline.U obe predložene procedure, Beer-ov zakon važi u oblasti 00.85 μg mL-1 - 16.9 μg mL-1 kvercetina. Prema prvoj proceduri, molarni apsorpcioni koeficijent kvercetin–titaniloksalatnog kompleksa je a=2.49 x 104 mol-1 dm3 cm-1, Sandelova osetljivost metode je S = 1.35 x 10-2 μg cm-2, a limit detekcije je d = 0.67 μg mL-1. Prema drugoj proceduri, a = 3.04 x 104 mol-1 dm3 cm-1, S = 1.11 x 10-2 μg mL-1. Predloženi metod je primenjen za određivanje kvercetina u doziranim oblicima.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Determination of quercetin in pharmaceutical formulations via its reaction with potassium-titanyloxalate: Determination of the stability constants of the quercetin-titanyloxalato complex
T1  - Određivanje kvercetina u farmaceutskim preparatima preko reakcije sa kalijum-titaniloksalatom - određivanje konstanti stabilnosti kvercetin-titaniloksalatnog kompleksa
VL  - 70
IS  - 5
SP  - 753
EP  - 763
DO  - 10.2298/JSC0505753K
ER  - 
@article{
author = "Kuntić, Vesna and Pejić, Nataša and Mićić, Svetlana and Vukojević, Vladana and Vujić, Zorica and Malešev, Dušan",
year = "2005",
abstract = "Asimple, rapid and accurate procedure for the quantitative determination of quercetin in its pure form and in formulations has been developed. The method is based on the spectrophotometric determination of a complex formed between quercetin and potassium titanyloxalate in 50 % ethanolic solutions. To characterize the quercetin titanyloxalato complex, the stability constants of the complex were determinated potentiometrically and spectrophotometrically at different temperatures (T = 26.0oC, 34oC and 39.0oC), as well as at different ionic strengths (I = 5.0x10-4 mol dm-3, 3.0x10-2 mol dm-3 and 6.0x10-2 mol dm-3) and the thermodynamic parameters were calculated. As quercetin is usually conjugated to vitamin C in pharmaceutical formulations, two procedures for the quantitative determination of quercetin by this complexing reaction were tested - both in the absence and presence of ascorbic acid. In both procedures, the Beer law was obeyed over the same concentration range of quercetin, i.e., 0.85 μg mL-1 - 16.9 μg mL-1. In the first procedure in the absence of ascorbic acid the molar absorptivity coefficient of the quercetin-titanyloxalate complex is a=2.49 x 104 mol-1 dm3 cm-1, Sandells sensitivity of the method is S = 1.35 x 10-2 μg cm-2 and the detection limit is d = 0.67 μg mL-1. Whereas, in the presence of ascorbic acid (second procedure) a = 3.04 x 104 mol-1 dm3 cm-1, S = 1.11 x 10-2 μg mL-1. The proposed method was verified for the determination of quercetin in pharmaceutical dosage forms., Predložen je brz, jednostavan i tačan metod za određivanje kvercetina u farmaceutskim sirovinama i doziranim oblicima.Metod je baziran na spektrofotometrijskom određivanju kompleksa formiranog između kvercetina i kalijum-titaniloksalata u 50 % etanolu. Određene su konstante stabilnosti kvercetin titaniloksalatnog kompleksa potenciometrijski i spektrofotometrijski na različitim temperaturama (T = 26.0oC, 34oC and 39.0oC) i jonskim jačinama (I = 5.0x10-4 mol dm-3, 3.0x10-2 mol dm-3 and 6.0x10-2 mol dm-3) i izračunati su termodinamički parametri. Kako se kvercetin uobičajeno nalazi zajedno sa vitaminom C u doziranim oblicima, predložene su dve procedure za određivanje kvercetina: bez i u prisustvu askorbinske kiseline.U obe predložene procedure, Beer-ov zakon važi u oblasti 00.85 μg mL-1 - 16.9 μg mL-1 kvercetina. Prema prvoj proceduri, molarni apsorpcioni koeficijent kvercetin–titaniloksalatnog kompleksa je a=2.49 x 104 mol-1 dm3 cm-1, Sandelova osetljivost metode je S = 1.35 x 10-2 μg cm-2, a limit detekcije je d = 0.67 μg mL-1. Prema drugoj proceduri, a = 3.04 x 104 mol-1 dm3 cm-1, S = 1.11 x 10-2 μg mL-1. Predloženi metod je primenjen za određivanje kvercetina u doziranim oblicima.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Determination of quercetin in pharmaceutical formulations via its reaction with potassium-titanyloxalate: Determination of the stability constants of the quercetin-titanyloxalato complex, Određivanje kvercetina u farmaceutskim preparatima preko reakcije sa kalijum-titaniloksalatom - određivanje konstanti stabilnosti kvercetin-titaniloksalatnog kompleksa",
volume = "70",
number = "5",
pages = "753-763",
doi = "10.2298/JSC0505753K"
}
Kuntić, V., Pejić, N., Mićić, S., Vukojević, V., Vujić, Z.,& Malešev, D.. (2005). Determination of quercetin in pharmaceutical formulations via its reaction with potassium-titanyloxalate: Determination of the stability constants of the quercetin-titanyloxalato complex. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 70(5), 753-763.
https://doi.org/10.2298/JSC0505753K
Kuntić V, Pejić N, Mićić S, Vukojević V, Vujić Z, Malešev D. Determination of quercetin in pharmaceutical formulations via its reaction with potassium-titanyloxalate: Determination of the stability constants of the quercetin-titanyloxalato complex. in Journal of the Serbian Chemical Society. 2005;70(5):753-763.
doi:10.2298/JSC0505753K .
Kuntić, Vesna, Pejić, Nataša, Mićić, Svetlana, Vukojević, Vladana, Vujić, Zorica, Malešev, Dušan, "Determination of quercetin in pharmaceutical formulations via its reaction with potassium-titanyloxalate: Determination of the stability constants of the quercetin-titanyloxalato complex" in Journal of the Serbian Chemical Society, 70, no. 5 (2005):753-763,
https://doi.org/10.2298/JSC0505753K . .
11
13
13

Spectrophotometric investigation of titanyl oxalate-morin complex in 50% v/v ethanol

Blagojević, Slavica; Aleksić, Mara; Malešev, Dušan; Radović, Zorica

(Savez farmaceutskih udruženja Srbije, Beograd, 2003)

TY  - JOUR
AU  - Blagojević, Slavica
AU  - Aleksić, Mara
AU  - Malešev, Dušan
AU  - Radović, Zorica
PY  - 2003
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/453
AB  - The composition of the titanyl oksalat-morin complex was determined by spectrophotometric method of variations of equimolar solutions and by the mole ratios method. The investigation of the composition and the concentration stability constant of the complex were carried out in a 50% V/V ethanol. It was found that titanyl oxalate ion and morin form 1:2 complex. The concentration stability constant of the complex, logβ2 was calculated for the pH=6,0 (5.83), pH=7,0 (6.40) andpH=8,0 (7.35).
AB  - Sastav titanil oksalat-morin kompleksa određenje spektrofotometrijskom metodom varijacija ekvimolarnih rastvora i metodom molarnih odnosa. Ispitivanje sastava i određivanje koncentracionih konstanti stabilnosti ovog kompleksa vršeni su u 50% V/V etanolu. Nađeno je da se formira kompleks TiO(C2O4)22-: morin = 1:2. Određene su koncentracione konstante stabilnosti kompleksa: log β2 = 5,83 (pH = 6,0), log β2 =6,40 (pH = 7,0) i log β2 = 7,35 (pH =8,0).
PB  - Savez farmaceutskih udruženja Srbije, Beograd
T2  - Arhiv za farmaciju
T1  - Spectrophotometric investigation of titanyl oxalate-morin complex in 50% v/v ethanol
T1  - Spektrofotometrijsko ispitivanje kompleksa titanil oksalat-morin u 50% v/v etanolu
VL  - 53
IS  - 1-2
SP  - 17
EP  - 26
UR  - https://hdl.handle.net/21.15107/rcub_farfar_453
ER  - 
@article{
author = "Blagojević, Slavica and Aleksić, Mara and Malešev, Dušan and Radović, Zorica",
year = "2003",
abstract = "The composition of the titanyl oksalat-morin complex was determined by spectrophotometric method of variations of equimolar solutions and by the mole ratios method. The investigation of the composition and the concentration stability constant of the complex were carried out in a 50% V/V ethanol. It was found that titanyl oxalate ion and morin form 1:2 complex. The concentration stability constant of the complex, logβ2 was calculated for the pH=6,0 (5.83), pH=7,0 (6.40) andpH=8,0 (7.35)., Sastav titanil oksalat-morin kompleksa određenje spektrofotometrijskom metodom varijacija ekvimolarnih rastvora i metodom molarnih odnosa. Ispitivanje sastava i određivanje koncentracionih konstanti stabilnosti ovog kompleksa vršeni su u 50% V/V etanolu. Nađeno je da se formira kompleks TiO(C2O4)22-: morin = 1:2. Određene su koncentracione konstante stabilnosti kompleksa: log β2 = 5,83 (pH = 6,0), log β2 =6,40 (pH = 7,0) i log β2 = 7,35 (pH =8,0).",
publisher = "Savez farmaceutskih udruženja Srbije, Beograd",
journal = "Arhiv za farmaciju",
title = "Spectrophotometric investigation of titanyl oxalate-morin complex in 50% v/v ethanol, Spektrofotometrijsko ispitivanje kompleksa titanil oksalat-morin u 50% v/v etanolu",
volume = "53",
number = "1-2",
pages = "17-26",
url = "https://hdl.handle.net/21.15107/rcub_farfar_453"
}
Blagojević, S., Aleksić, M., Malešev, D.,& Radović, Z.. (2003). Spectrophotometric investigation of titanyl oxalate-morin complex in 50% v/v ethanol. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije, Beograd., 53(1-2), 17-26.
https://hdl.handle.net/21.15107/rcub_farfar_453
Blagojević S, Aleksić M, Malešev D, Radović Z. Spectrophotometric investigation of titanyl oxalate-morin complex in 50% v/v ethanol. in Arhiv za farmaciju. 2003;53(1-2):17-26.
https://hdl.handle.net/21.15107/rcub_farfar_453 .
Blagojević, Slavica, Aleksić, Mara, Malešev, Dušan, Radović, Zorica, "Spectrophotometric investigation of titanyl oxalate-morin complex in 50% v/v ethanol" in Arhiv za farmaciju, 53, no. 1-2 (2003):17-26,
https://hdl.handle.net/21.15107/rcub_farfar_453 .

Thermodynamic stability constants of complexes of Fe(III)-ion with orciprenaline and phenylephrine

Pavun, Leposava; Malešev, Dušan; Veselinović, Dragan S.

(Savez farmaceutskih udruženja Srbije, Beograd, 2003)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Malešev, Dušan
AU  - Veselinović, Dragan S.
PY  - 2003
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/449
AB  - The concentration stability constants of Fe(III)-orciprenaline complex and Fe(III)-phenylephrine complex were calculated for three different ionic strengths, by modificated Bjerrum's method. The values of thermodynamic stability constants are determined from curve log β = f (I1/2), as interception at ordinate. From the determined thermodynamic stability constants logβ10 =8,28 and logβ02 = 16,24 of the complexes investigated, the values of the ∆G10= - 46,87 kJ/mol and, AG° = -92,76 kJ/mol were calculated for Fe(III)-orciprenaline and Fe(III)- phenylephrine complexes respectively.
AB  - Za komplekse Fe(III)-fenilefrin i Fe(III)-orciprenalin određene su vrednosti koncentracionih konstanti stabilnosti na tri jonske jačine (0,024; 0,050 0,075 mol/dm3). Na osnovu ovih vrednosti izračunate su termodinamičke konstante stabilnosti ovih kompleksa ekstrapolacijom dijagrama logβn=f(I) na vrednost I=0. Dobijena vrednost za kompleks Fe(III)-fenilefrin je logβ0 2 = 16,24, a za kompleks Fe(III)-orciprenalin ona iznosi logβ10= 8,28. Izračunate su promene standardne Gibbsove energije za reakciju stvaranja kompleksa: ∆G1°= -46,87 kJ/mol za Fe(III)- orciprenalin i ∆G°2 = -92,76 kJ/mol za Fe(III)-fenilefrin.
PB  - Savez farmaceutskih udruženja Srbije, Beograd
T2  - Arhiv za farmaciju
T1  - Thermodynamic stability constants of complexes of Fe(III)-ion with orciprenaline and phenylephrine
T1  - Termodinamičke konstante stabilnosti kompleksa Fe(III)-jona sa orciprenalinom i fenilefrinom
VL  - 53
IS  - 1-2
SP  - 27
EP  - 36
UR  - https://hdl.handle.net/21.15107/rcub_farfar_449
ER  - 
@article{
author = "Pavun, Leposava and Malešev, Dušan and Veselinović, Dragan S.",
year = "2003",
abstract = "The concentration stability constants of Fe(III)-orciprenaline complex and Fe(III)-phenylephrine complex were calculated for three different ionic strengths, by modificated Bjerrum's method. The values of thermodynamic stability constants are determined from curve log β = f (I1/2), as interception at ordinate. From the determined thermodynamic stability constants logβ10 =8,28 and logβ02 = 16,24 of the complexes investigated, the values of the ∆G10= - 46,87 kJ/mol and, AG° = -92,76 kJ/mol were calculated for Fe(III)-orciprenaline and Fe(III)- phenylephrine complexes respectively., Za komplekse Fe(III)-fenilefrin i Fe(III)-orciprenalin određene su vrednosti koncentracionih konstanti stabilnosti na tri jonske jačine (0,024; 0,050 0,075 mol/dm3). Na osnovu ovih vrednosti izračunate su termodinamičke konstante stabilnosti ovih kompleksa ekstrapolacijom dijagrama logβn=f(I) na vrednost I=0. Dobijena vrednost za kompleks Fe(III)-fenilefrin je logβ0 2 = 16,24, a za kompleks Fe(III)-orciprenalin ona iznosi logβ10= 8,28. Izračunate su promene standardne Gibbsove energije za reakciju stvaranja kompleksa: ∆G1°= -46,87 kJ/mol za Fe(III)- orciprenalin i ∆G°2 = -92,76 kJ/mol za Fe(III)-fenilefrin.",
publisher = "Savez farmaceutskih udruženja Srbije, Beograd",
journal = "Arhiv za farmaciju",
title = "Thermodynamic stability constants of complexes of Fe(III)-ion with orciprenaline and phenylephrine, Termodinamičke konstante stabilnosti kompleksa Fe(III)-jona sa orciprenalinom i fenilefrinom",
volume = "53",
number = "1-2",
pages = "27-36",
url = "https://hdl.handle.net/21.15107/rcub_farfar_449"
}
Pavun, L., Malešev, D.,& Veselinović, D. S.. (2003). Thermodynamic stability constants of complexes of Fe(III)-ion with orciprenaline and phenylephrine. in Arhiv za farmaciju
Savez farmaceutskih udruženja Srbije, Beograd., 53(1-2), 27-36.
https://hdl.handle.net/21.15107/rcub_farfar_449
Pavun L, Malešev D, Veselinović DS. Thermodynamic stability constants of complexes of Fe(III)-ion with orciprenaline and phenylephrine. in Arhiv za farmaciju. 2003;53(1-2):27-36.
https://hdl.handle.net/21.15107/rcub_farfar_449 .
Pavun, Leposava, Malešev, Dušan, Veselinović, Dragan S., "Thermodynamic stability constants of complexes of Fe(III)-ion with orciprenaline and phenylephrine" in Arhiv za farmaciju, 53, no. 1-2 (2003):27-36,
https://hdl.handle.net/21.15107/rcub_farfar_449 .

Determination of dissociation constants of quercetin

Kuntić, Vesna; Pejić, Nataša; Micić, S; Malešev, Dušan; Vujić, Zorica

(Govi-Verlag Gmbh, Eschborn, 2003)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Pejić, Nataša
AU  - Micić, S
AU  - Malešev, Dušan
AU  - Vujić, Zorica
PY  - 2003
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/421
PB  - Govi-Verlag Gmbh, Eschborn
T2  - Pharmazie
T1  - Determination of dissociation constants of quercetin
VL  - 58
IS  - 6
SP  - 439
EP  - 440
UR  - https://hdl.handle.net/21.15107/rcub_farfar_421
ER  - 
@article{
author = "Kuntić, Vesna and Pejić, Nataša and Micić, S and Malešev, Dušan and Vujić, Zorica",
year = "2003",
publisher = "Govi-Verlag Gmbh, Eschborn",
journal = "Pharmazie",
title = "Determination of dissociation constants of quercetin",
volume = "58",
number = "6",
pages = "439-440",
url = "https://hdl.handle.net/21.15107/rcub_farfar_421"
}
Kuntić, V., Pejić, N., Micić, S., Malešev, D.,& Vujić, Z.. (2003). Determination of dissociation constants of quercetin. in Pharmazie
Govi-Verlag Gmbh, Eschborn., 58(6), 439-440.
https://hdl.handle.net/21.15107/rcub_farfar_421
Kuntić V, Pejić N, Micić S, Malešev D, Vujić Z. Determination of dissociation constants of quercetin. in Pharmazie. 2003;58(6):439-440.
https://hdl.handle.net/21.15107/rcub_farfar_421 .
Kuntić, Vesna, Pejić, Nataša, Micić, S, Malešev, Dušan, Vujić, Zorica, "Determination of dissociation constants of quercetin" in Pharmazie, 58, no. 6 (2003):439-440,
https://hdl.handle.net/21.15107/rcub_farfar_421 .
11
12

Potassium titanyloxalate as analytical reagent for micro-quantitative determination of quercetin

Pejić, Nataša; Kuntić, Vesna; Malešev, Dušan

(Govi-Verlag Gmbh, Eschborn, 2002)

TY  - JOUR
AU  - Pejić, Nataša
AU  - Kuntić, Vesna
AU  - Malešev, Dušan
PY  - 2002
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/319
PB  - Govi-Verlag Gmbh, Eschborn
T2  - Pharmazie
T1  - Potassium titanyloxalate as analytical reagent for micro-quantitative determination of quercetin
VL  - 57
IS  - 3
SP  - 216
EP  - 217
UR  - https://hdl.handle.net/21.15107/rcub_farfar_319
ER  - 
@article{
author = "Pejić, Nataša and Kuntić, Vesna and Malešev, Dušan",
year = "2002",
publisher = "Govi-Verlag Gmbh, Eschborn",
journal = "Pharmazie",
title = "Potassium titanyloxalate as analytical reagent for micro-quantitative determination of quercetin",
volume = "57",
number = "3",
pages = "216-217",
url = "https://hdl.handle.net/21.15107/rcub_farfar_319"
}
Pejić, N., Kuntić, V.,& Malešev, D.. (2002). Potassium titanyloxalate as analytical reagent for micro-quantitative determination of quercetin. in Pharmazie
Govi-Verlag Gmbh, Eschborn., 57(3), 216-217.
https://hdl.handle.net/21.15107/rcub_farfar_319
Pejić N, Kuntić V, Malešev D. Potassium titanyloxalate as analytical reagent for micro-quantitative determination of quercetin. in Pharmazie. 2002;57(3):216-217.
https://hdl.handle.net/21.15107/rcub_farfar_319 .
Pejić, Nataša, Kuntić, Vesna, Malešev, Dušan, "Potassium titanyloxalate as analytical reagent for micro-quantitative determination of quercetin" in Pharmazie, 57, no. 3 (2002):216-217,
https://hdl.handle.net/21.15107/rcub_farfar_319 .
2
5

A spectrophotometric investigation of the complex between titanyl oxalate and 3-hydroxyflavone in water ethanolic mixtures

Aleksić, Mara; Blagojević, Slavica; Malešev, Dušan; Radović, Zorica

(Srpsko hemijsko društvo, Beograd, 2000)

TY  - JOUR
AU  - Aleksić, Mara
AU  - Blagojević, Slavica
AU  - Malešev, Dušan
AU  - Radović, Zorica
PY  - 2000
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/258
AB  - It has been established, by the application of suitable spectrophotometric methods and pH-metric measurements, that titanyl oxalate anion and 3-hydroxyflavone (3HF) form a [TiO(C2O4)2(C15H9O3)2]4- complex. The investigation of the composition and the concentration stability constant of the complex were carried out in a 50 % aqueous ethanol solution at room temperature (20 °C), in the pH range from 1.9 to 9.0. The concentration stability constant of the complex, log β2, ranged from 16.65 at pH 5.0 to 13.96 at pH 7.0. The conditions for the spectrophotometric determination of 3HF by means of the complex formation were investigated in the concentration range from 2.5 x 10-5 to 3.0 x 10-4 mol dm-3 3HF.
AB  - Korišćenjem pogodnih spektrofotometrijskih i pH-metrijskih metoda utvrđeno je da titanil oksalat i 3-hidroksiflavon (3HF) grade [TiO(C2O4)2(C15H9O3)2]4- kompleks. Ispitivanje sastava i određivanje koncentracionih konstanti stabilnosti ovog kompleksa vršeno je u 50 % etanolnom rastvoru, na sobnoj temperaturi (20 °C), u oblasti pH od 1,9 do 9,0. Izračunate vrednosti koncentracione konstante stabilnosti kompleksa, log β2, su u intervalu od 16,65 pri pH 5,0 do 13,96 na pH 7,0. Određeni su i uslovi za spektrofotometrijsko određivanje 3HF korišćenjem nagrađenog kompleksa u koncentracionom intervalu od 2,5 x 10-5 do 3,0 x 10-4 mol dm-3.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - A spectrophotometric investigation of the complex between titanyl oxalate and 3-hydroxyflavone in water ethanolic mixtures
T1  - Spektrofotometrijsko ispitivanje kompleksa između titanil oksalata i 3-hidroksiflavona u vodeno-etanolnoj smeši
VL  - 65
IS  - 9
SP  - 631
EP  - 638
UR  - https://hdl.handle.net/21.15107/rcub_farfar_258
ER  - 
@article{
author = "Aleksić, Mara and Blagojević, Slavica and Malešev, Dušan and Radović, Zorica",
year = "2000",
abstract = "It has been established, by the application of suitable spectrophotometric methods and pH-metric measurements, that titanyl oxalate anion and 3-hydroxyflavone (3HF) form a [TiO(C2O4)2(C15H9O3)2]4- complex. The investigation of the composition and the concentration stability constant of the complex were carried out in a 50 % aqueous ethanol solution at room temperature (20 °C), in the pH range from 1.9 to 9.0. The concentration stability constant of the complex, log β2, ranged from 16.65 at pH 5.0 to 13.96 at pH 7.0. The conditions for the spectrophotometric determination of 3HF by means of the complex formation were investigated in the concentration range from 2.5 x 10-5 to 3.0 x 10-4 mol dm-3 3HF., Korišćenjem pogodnih spektrofotometrijskih i pH-metrijskih metoda utvrđeno je da titanil oksalat i 3-hidroksiflavon (3HF) grade [TiO(C2O4)2(C15H9O3)2]4- kompleks. Ispitivanje sastava i određivanje koncentracionih konstanti stabilnosti ovog kompleksa vršeno je u 50 % etanolnom rastvoru, na sobnoj temperaturi (20 °C), u oblasti pH od 1,9 do 9,0. Izračunate vrednosti koncentracione konstante stabilnosti kompleksa, log β2, su u intervalu od 16,65 pri pH 5,0 do 13,96 na pH 7,0. Određeni su i uslovi za spektrofotometrijsko određivanje 3HF korišćenjem nagrađenog kompleksa u koncentracionom intervalu od 2,5 x 10-5 do 3,0 x 10-4 mol dm-3.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "A spectrophotometric investigation of the complex between titanyl oxalate and 3-hydroxyflavone in water ethanolic mixtures, Spektrofotometrijsko ispitivanje kompleksa između titanil oksalata i 3-hidroksiflavona u vodeno-etanolnoj smeši",
volume = "65",
number = "9",
pages = "631-638",
url = "https://hdl.handle.net/21.15107/rcub_farfar_258"
}
Aleksić, M., Blagojević, S., Malešev, D.,& Radović, Z.. (2000). A spectrophotometric investigation of the complex between titanyl oxalate and 3-hydroxyflavone in water ethanolic mixtures. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 65(9), 631-638.
https://hdl.handle.net/21.15107/rcub_farfar_258
Aleksić M, Blagojević S, Malešev D, Radović Z. A spectrophotometric investigation of the complex between titanyl oxalate and 3-hydroxyflavone in water ethanolic mixtures. in Journal of the Serbian Chemical Society. 2000;65(9):631-638.
https://hdl.handle.net/21.15107/rcub_farfar_258 .
Aleksić, Mara, Blagojević, Slavica, Malešev, Dušan, Radović, Zorica, "A spectrophotometric investigation of the complex between titanyl oxalate and 3-hydroxyflavone in water ethanolic mixtures" in Journal of the Serbian Chemical Society, 65, no. 9 (2000):631-638,
https://hdl.handle.net/21.15107/rcub_farfar_258 .
4
4

Spectrophotometric investigation of the complexing reaction between rutin and titanyloxalate anion in 50% ethanol

Kuntić, Vesna; Malešev, Dušan; Radović, Z; Vukojević, Vladana

(Springer-Verlag Wien, Vienna, 2000)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Malešev, Dušan
AU  - Radović, Z
AU  - Vukojević, Vladana
PY  - 2000
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/233
AB  - In the present work, rutin (3,3',4',5,7-pentahydrohyflavone-3-rhamnoglucoside) was determinated via a complexing reaction with a titanyloxalate anion. K-2[TiO(C2O4)(2)] and rutin react in 50% ethanol forming a 1:2 complex in a pH range from 4.00 to 11.50, in which the TiO(C2O4)(2)(2-) ion is linked to rutin through the 4-carbonyl and 5-hydroxyl group. The thermodynamic stability constant log beta(2)(0) of the complex is determined to 10.80 at pH = 6.50. The change of the standard Gibbs free energy Delta G(0) amounts to -61 kJ . mol(-1), indicating that the process of complex formation is spontaneous. The optimal conditions for the spectrophotometric determination of microconcentrations of rutin are at pH = 6.40 and lambda = 430 nm, where the complex shows an absorption maximum with a molar absorption coefficient a(430) = (60+/-2) . 10(3) dm(3) . mol(-1) . cm(-1). The method is applied rutin determination from tablets.
PB  - Springer-Verlag Wien, Vienna
T2  - Monatshefte für Chemie Chemical Monthly
T1  - Spectrophotometric investigation of the complexing reaction between rutin and titanyloxalate anion in 50% ethanol
VL  - 131
IS  - 7
SP  - 769
EP  - 777
DO  - 10.1007/s007060050024
ER  - 
@article{
author = "Kuntić, Vesna and Malešev, Dušan and Radović, Z and Vukojević, Vladana",
year = "2000",
abstract = "In the present work, rutin (3,3',4',5,7-pentahydrohyflavone-3-rhamnoglucoside) was determinated via a complexing reaction with a titanyloxalate anion. K-2[TiO(C2O4)(2)] and rutin react in 50% ethanol forming a 1:2 complex in a pH range from 4.00 to 11.50, in which the TiO(C2O4)(2)(2-) ion is linked to rutin through the 4-carbonyl and 5-hydroxyl group. The thermodynamic stability constant log beta(2)(0) of the complex is determined to 10.80 at pH = 6.50. The change of the standard Gibbs free energy Delta G(0) amounts to -61 kJ . mol(-1), indicating that the process of complex formation is spontaneous. The optimal conditions for the spectrophotometric determination of microconcentrations of rutin are at pH = 6.40 and lambda = 430 nm, where the complex shows an absorption maximum with a molar absorption coefficient a(430) = (60+/-2) . 10(3) dm(3) . mol(-1) . cm(-1). The method is applied rutin determination from tablets.",
publisher = "Springer-Verlag Wien, Vienna",
journal = "Monatshefte für Chemie Chemical Monthly",
title = "Spectrophotometric investigation of the complexing reaction between rutin and titanyloxalate anion in 50% ethanol",
volume = "131",
number = "7",
pages = "769-777",
doi = "10.1007/s007060050024"
}
Kuntić, V., Malešev, D., Radović, Z.,& Vukojević, V.. (2000). Spectrophotometric investigation of the complexing reaction between rutin and titanyloxalate anion in 50% ethanol. in Monatshefte für Chemie Chemical Monthly
Springer-Verlag Wien, Vienna., 131(7), 769-777.
https://doi.org/10.1007/s007060050024
Kuntić V, Malešev D, Radović Z, Vukojević V. Spectrophotometric investigation of the complexing reaction between rutin and titanyloxalate anion in 50% ethanol. in Monatshefte für Chemie Chemical Monthly. 2000;131(7):769-777.
doi:10.1007/s007060050024 .
Kuntić, Vesna, Malešev, Dušan, Radović, Z, Vukojević, Vladana, "Spectrophotometric investigation of the complexing reaction between rutin and titanyloxalate anion in 50% ethanol" in Monatshefte für Chemie Chemical Monthly, 131, no. 7 (2000):769-777,
https://doi.org/10.1007/s007060050024 . .
16
19
17

Spectrophotometric investigation of the cu(ll)-hesperidin complex

Kuntić, Vesna; Blagojević, Slavica; Malešev, Dušan; Radović, Zorica

(Govi-Verlag Pharmazeutischer Verlag GmbH, 1999)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Blagojević, Slavica
AU  - Malešev, Dušan
AU  - Radović, Zorica
PY  - 1999
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/231
PB  - Govi-Verlag Pharmazeutischer Verlag GmbH
T2  - Pharmazie
T1  - Spectrophotometric investigation of the cu(ll)-hesperidin complex
VL  - 54
IS  - 7
SP  - 548
UR  - https://hdl.handle.net/21.15107/rcub_farfar_231
ER  - 
@article{
author = "Kuntić, Vesna and Blagojević, Slavica and Malešev, Dušan and Radović, Zorica",
year = "1999",
publisher = "Govi-Verlag Pharmazeutischer Verlag GmbH",
journal = "Pharmazie",
title = "Spectrophotometric investigation of the cu(ll)-hesperidin complex",
volume = "54",
number = "7",
pages = "548",
url = "https://hdl.handle.net/21.15107/rcub_farfar_231"
}
Kuntić, V., Blagojević, S., Malešev, D.,& Radović, Z.. (1999). Spectrophotometric investigation of the cu(ll)-hesperidin complex. in Pharmazie
Govi-Verlag Pharmazeutischer Verlag GmbH., 54(7), 548.
https://hdl.handle.net/21.15107/rcub_farfar_231
Kuntić V, Blagojević S, Malešev D, Radović Z. Spectrophotometric investigation of the cu(ll)-hesperidin complex. in Pharmazie. 1999;54(7):548.
https://hdl.handle.net/21.15107/rcub_farfar_231 .
Kuntić, Vesna, Blagojević, Slavica, Malešev, Dušan, Radović, Zorica, "Spectrophotometric investigation of the cu(ll)-hesperidin complex" in Pharmazie, 54, no. 7 (1999):548,
https://hdl.handle.net/21.15107/rcub_farfar_231 .
7

Spectrophotometric investigation of the Cu(II)-hesperidin complex

Kuntić, Vesna; Blagojević, S.; Malešev, Dušan; Radović, Z

(Govi-Verlag Gmbh, Eschborn, 1999)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Blagojević, S.
AU  - Malešev, Dušan
AU  - Radović, Z
PY  - 1999
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/229
PB  - Govi-Verlag Gmbh, Eschborn
T2  - Pharmazie
T1  - Spectrophotometric investigation of the Cu(II)-hesperidin complex
VL  - 54
IS  - 7
SP  - 548
EP  - 548
UR  - https://hdl.handle.net/21.15107/rcub_farfar_229
ER  - 
@article{
author = "Kuntić, Vesna and Blagojević, S. and Malešev, Dušan and Radović, Z",
year = "1999",
publisher = "Govi-Verlag Gmbh, Eschborn",
journal = "Pharmazie",
title = "Spectrophotometric investigation of the Cu(II)-hesperidin complex",
volume = "54",
number = "7",
pages = "548-548",
url = "https://hdl.handle.net/21.15107/rcub_farfar_229"
}
Kuntić, V., Blagojević, S., Malešev, D.,& Radović, Z.. (1999). Spectrophotometric investigation of the Cu(II)-hesperidin complex. in Pharmazie
Govi-Verlag Gmbh, Eschborn., 54(7), 548-548.
https://hdl.handle.net/21.15107/rcub_farfar_229
Kuntić V, Blagojević S, Malešev D, Radović Z. Spectrophotometric investigation of the Cu(II)-hesperidin complex. in Pharmazie. 1999;54(7):548-548.
https://hdl.handle.net/21.15107/rcub_farfar_229 .
Kuntić, Vesna, Blagojević, S., Malešev, Dušan, Radović, Z, "Spectrophotometric investigation of the Cu(II)-hesperidin complex" in Pharmazie, 54, no. 7 (1999):548-548,
https://hdl.handle.net/21.15107/rcub_farfar_229 .
6

Effects of flavonoids on plasma coagulation tested in vitro by "screening tests"

Kuntić, Vesna; Filipović-Ljesković, L; Malešev, Dušan; Jelić, S

(Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd, 1999)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Filipović-Ljesković, L
AU  - Malešev, Dušan
AU  - Jelić, S
PY  - 1999
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/227
AB  - The effects of four flavonoids: rutin, quercetin, morin and hesperidin on plasma coagulation has been examined by measuring aPTT, TT and PT. It is found that water solution of these flavonoids shows no effects in the measured quantities. This is due to their low solubility in water, and therefore, their low concentrations. Ethanolic solutions of these studied flavonoids, however, show significant prolongation of all measured coagulation times, but compared to ethanol alone, their anticoagulant effects are smaller. It is suggested that the observed effects can be attributed to the interaction of flavonoids with human plasma proteins.
PB  - Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd
T2  - Jugoslovenska medicinska biohemija
T1  - Effects of flavonoids on plasma coagulation tested in vitro by "screening tests"
VL  - 18
IS  - 4
SP  - 167
EP  - 169
UR  - https://hdl.handle.net/21.15107/rcub_farfar_227
ER  - 
@article{
author = "Kuntić, Vesna and Filipović-Ljesković, L and Malešev, Dušan and Jelić, S",
year = "1999",
abstract = "The effects of four flavonoids: rutin, quercetin, morin and hesperidin on plasma coagulation has been examined by measuring aPTT, TT and PT. It is found that water solution of these flavonoids shows no effects in the measured quantities. This is due to their low solubility in water, and therefore, their low concentrations. Ethanolic solutions of these studied flavonoids, however, show significant prolongation of all measured coagulation times, but compared to ethanol alone, their anticoagulant effects are smaller. It is suggested that the observed effects can be attributed to the interaction of flavonoids with human plasma proteins.",
publisher = "Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd",
journal = "Jugoslovenska medicinska biohemija",
title = "Effects of flavonoids on plasma coagulation tested in vitro by "screening tests"",
volume = "18",
number = "4",
pages = "167-169",
url = "https://hdl.handle.net/21.15107/rcub_farfar_227"
}
Kuntić, V., Filipović-Ljesković, L., Malešev, D.,& Jelić, S.. (1999). Effects of flavonoids on plasma coagulation tested in vitro by "screening tests". in Jugoslovenska medicinska biohemija
Društvo medicinskih biohemičara Srbije i Crne Gore, Beograd i Univerzitet u Beogradu - Farmaceutski fakultet, Beograd., 18(4), 167-169.
https://hdl.handle.net/21.15107/rcub_farfar_227
Kuntić V, Filipović-Ljesković L, Malešev D, Jelić S. Effects of flavonoids on plasma coagulation tested in vitro by "screening tests". in Jugoslovenska medicinska biohemija. 1999;18(4):167-169.
https://hdl.handle.net/21.15107/rcub_farfar_227 .
Kuntić, Vesna, Filipović-Ljesković, L, Malešev, Dušan, Jelić, S, "Effects of flavonoids on plasma coagulation tested in vitro by "screening tests"" in Jugoslovenska medicinska biohemija, 18, no. 4 (1999):167-169,
https://hdl.handle.net/21.15107/rcub_farfar_227 .
1

Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol

Kuntić, Vesna; Malešev, Dušan; Radović, ZV; Kosanić, MM; Mioč, Ubavka B.; Vukojević, Vladana

(Amer Chemical Soc, Washington, 1998)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Malešev, Dušan
AU  - Radović, ZV
AU  - Kosanić, MM
AU  - Mioč, Ubavka B.
AU  - Vukojević, Vladana
PY  - 1998
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/189
AB  - The composition and stability constant of a UO2(II)-rutin complex in 70% ethanol were determined by suitable spectrophotometric methods and pH measurement. UO2(II) ion and rutin (3,3',4',5,7-pentahydroxyflavone-3-rhamnoglucoside) form a 1:1 complex in which the UO2(II) ion is linked to rutin through the carbonyl and 5-hydroxyl group. The concentration stability constant of the complex, log beta(1), ranged from 6.57 at pH 4.00 to 4.72 at pH 7.00. Conditions for spectrophotometric determination of rutin, by complex formation with UO2(II) ion, were investigated. Beer's law was obeyed in the concentration range from 1.0 x 10(-5) to 2.0 x 10(-4) M for rutin. Determination of rutin in Rutinion forte tablets was demonstrated.
PB  - Amer Chemical Soc, Washington
T2  - Journal of Agricultural and Food Chemistry
T1  - Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol
VL  - 46
IS  - 12
SP  - 5139
EP  - 5142
DO  - 10.1021/jf980376k
ER  - 
@article{
author = "Kuntić, Vesna and Malešev, Dušan and Radović, ZV and Kosanić, MM and Mioč, Ubavka B. and Vukojević, Vladana",
year = "1998",
abstract = "The composition and stability constant of a UO2(II)-rutin complex in 70% ethanol were determined by suitable spectrophotometric methods and pH measurement. UO2(II) ion and rutin (3,3',4',5,7-pentahydroxyflavone-3-rhamnoglucoside) form a 1:1 complex in which the UO2(II) ion is linked to rutin through the carbonyl and 5-hydroxyl group. The concentration stability constant of the complex, log beta(1), ranged from 6.57 at pH 4.00 to 4.72 at pH 7.00. Conditions for spectrophotometric determination of rutin, by complex formation with UO2(II) ion, were investigated. Beer's law was obeyed in the concentration range from 1.0 x 10(-5) to 2.0 x 10(-4) M for rutin. Determination of rutin in Rutinion forte tablets was demonstrated.",
publisher = "Amer Chemical Soc, Washington",
journal = "Journal of Agricultural and Food Chemistry",
title = "Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol",
volume = "46",
number = "12",
pages = "5139-5142",
doi = "10.1021/jf980376k"
}
Kuntić, V., Malešev, D., Radović, Z., Kosanić, M., Mioč, U. B.,& Vukojević, V.. (1998). Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol. in Journal of Agricultural and Food Chemistry
Amer Chemical Soc, Washington., 46(12), 5139-5142.
https://doi.org/10.1021/jf980376k
Kuntić V, Malešev D, Radović Z, Kosanić M, Mioč UB, Vukojević V. Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol. in Journal of Agricultural and Food Chemistry. 1998;46(12):5139-5142.
doi:10.1021/jf980376k .
Kuntić, Vesna, Malešev, Dušan, Radović, ZV, Kosanić, MM, Mioč, Ubavka B., Vukojević, Vladana, "Spectrophotometric investigation of uranil(II)-rutin complex in 70% ethanol" in Journal of Agricultural and Food Chemistry, 46, no. 12 (1998):5139-5142,
https://doi.org/10.1021/jf980376k . .
3
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22

Spectrophotometric investigation of the Pd(II)-quercetin complex in 50% ethanol

Kuntić, Vesna; Blagojević, S.; Malešev, Dušan; Radović, Z; Bogavac, M

(Springer-Verlag Wien, Vienna, 1998)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Blagojević, S.
AU  - Malešev, Dušan
AU  - Radović, Z
AU  - Bogavac, M
PY  - 1998
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/178
AB  - Composition and stability constant of the Pd(II)-quercetin complex were determined by suitable spectrophotometric methods and pH-metric measurements in 50% Ethanol. It was found that the pd(2+) ion and quercetin form a 1:1 complex in which Pd2+ is linked to quercetin through the carbonyl and the 3-hydroxyl group. The stability constant log beta(1) ranged from 6.05 at pH = 5.00 to 4.96 at pH = 6.50. The conditions for the spectrophotometric determination of quercetin by means of complex formation were investigated. Beer's law was obeyed up to 5.00 x 10(-5) M quercetin.
PB  - Springer-Verlag Wien, Vienna
T2  - Monatshefte für Chemie Chemical Monthly
T1  - Spectrophotometric investigation of the Pd(II)-quercetin complex in 50% ethanol
VL  - 129
IS  - 1
SP  - 41
EP  - 48
DO  - 10.1007/PL00010103
ER  - 
@article{
author = "Kuntić, Vesna and Blagojević, S. and Malešev, Dušan and Radović, Z and Bogavac, M",
year = "1998",
abstract = "Composition and stability constant of the Pd(II)-quercetin complex were determined by suitable spectrophotometric methods and pH-metric measurements in 50% Ethanol. It was found that the pd(2+) ion and quercetin form a 1:1 complex in which Pd2+ is linked to quercetin through the carbonyl and the 3-hydroxyl group. The stability constant log beta(1) ranged from 6.05 at pH = 5.00 to 4.96 at pH = 6.50. The conditions for the spectrophotometric determination of quercetin by means of complex formation were investigated. Beer's law was obeyed up to 5.00 x 10(-5) M quercetin.",
publisher = "Springer-Verlag Wien, Vienna",
journal = "Monatshefte für Chemie Chemical Monthly",
title = "Spectrophotometric investigation of the Pd(II)-quercetin complex in 50% ethanol",
volume = "129",
number = "1",
pages = "41-48",
doi = "10.1007/PL00010103"
}
Kuntić, V., Blagojević, S., Malešev, D., Radović, Z.,& Bogavac, M.. (1998). Spectrophotometric investigation of the Pd(II)-quercetin complex in 50% ethanol. in Monatshefte für Chemie Chemical Monthly
Springer-Verlag Wien, Vienna., 129(1), 41-48.
https://doi.org/10.1007/PL00010103
Kuntić V, Blagojević S, Malešev D, Radović Z, Bogavac M. Spectrophotometric investigation of the Pd(II)-quercetin complex in 50% ethanol. in Monatshefte für Chemie Chemical Monthly. 1998;129(1):41-48.
doi:10.1007/PL00010103 .
Kuntić, Vesna, Blagojević, S., Malešev, Dušan, Radović, Z, Bogavac, M, "Spectrophotometric investigation of the Pd(II)-quercetin complex in 50% ethanol" in Monatshefte für Chemie Chemical Monthly, 129, no. 1 (1998):41-48,
https://doi.org/10.1007/PL00010103 . .
21
21
24

Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol

Kuntić, Vesna; Kosanić, M; Malešev, Dušan; Radović, Z; Mioč, Ubavka B.

(Srpsko hemijsko društvo, Beograd, 1998)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Kosanić, M
AU  - Malešev, Dušan
AU  - Radović, Z
AU  - Mioč, Ubavka B.
PY  - 1998
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/176
AB  - The composition and stability constant of the UO2(II)-hesperidin complex were determined by suitable spectrophotometric methods and pH-metric measurements. II was found that the uranil ion and hesperidin form a 1:2 complex in which the uranil ion is linked to the hesperidin molecule through the carbonyl and the 5-hydroxyl group. The relative stability constant, log K-2, ranged from 5.77 at pH 4.0 to 7.00 at pH 6.0. The conditions for the spectrophotometric determination of hesperidin, by means of reaction of the complex formation reaction, were investigated. Beer's law was obeyed up to 2.0x10(-5) mol dm(-3) hesperidin.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol
VL  - 63
IS  - 7
SP  - 565
EP  - 572
UR  - https://hdl.handle.net/21.15107/rcub_farfar_176
ER  - 
@article{
author = "Kuntić, Vesna and Kosanić, M and Malešev, Dušan and Radović, Z and Mioč, Ubavka B.",
year = "1998",
abstract = "The composition and stability constant of the UO2(II)-hesperidin complex were determined by suitable spectrophotometric methods and pH-metric measurements. II was found that the uranil ion and hesperidin form a 1:2 complex in which the uranil ion is linked to the hesperidin molecule through the carbonyl and the 5-hydroxyl group. The relative stability constant, log K-2, ranged from 5.77 at pH 4.0 to 7.00 at pH 6.0. The conditions for the spectrophotometric determination of hesperidin, by means of reaction of the complex formation reaction, were investigated. Beer's law was obeyed up to 2.0x10(-5) mol dm(-3) hesperidin.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol",
volume = "63",
number = "7",
pages = "565-572",
url = "https://hdl.handle.net/21.15107/rcub_farfar_176"
}
Kuntić, V., Kosanić, M., Malešev, D., Radović, Z.,& Mioč, U. B.. (1998). Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 63(7), 565-572.
https://hdl.handle.net/21.15107/rcub_farfar_176
Kuntić V, Kosanić M, Malešev D, Radović Z, Mioč UB. Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol. in Journal of the Serbian Chemical Society. 1998;63(7):565-572.
https://hdl.handle.net/21.15107/rcub_farfar_176 .
Kuntić, Vesna, Kosanić, M, Malešev, Dušan, Radović, Z, Mioč, Ubavka B., "Spectrophotometric investigation of the uranil(II)-hesperidin complex in 70% methanol" in Journal of the Serbian Chemical Society, 63, no. 7 (1998):565-572,
https://hdl.handle.net/21.15107/rcub_farfar_176 .
7
8

Spectrophotometric investigation of Pd(II)-rutin complexes and its application to rutin determination in tablets

Kuntić, Vesna; Kosanić, M; Malešev, Dušan; Radović, Z

(Govi-Verlag Gmbh, Eschborn, 1998)

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Kosanić, M
AU  - Malešev, Dušan
AU  - Radović, Z
PY  - 1998
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/195
PB  - Govi-Verlag Gmbh, Eschborn
T2  - Pharmazie
T1  - Spectrophotometric investigation of Pd(II)-rutin complexes and its application to rutin determination in tablets
VL  - 53
IS  - 10
SP  - 724
EP  - 726
UR  - https://hdl.handle.net/21.15107/rcub_farfar_195
ER  - 
@article{
author = "Kuntić, Vesna and Kosanić, M and Malešev, Dušan and Radović, Z",
year = "1998",
publisher = "Govi-Verlag Gmbh, Eschborn",
journal = "Pharmazie",
title = "Spectrophotometric investigation of Pd(II)-rutin complexes and its application to rutin determination in tablets",
volume = "53",
number = "10",
pages = "724-726",
url = "https://hdl.handle.net/21.15107/rcub_farfar_195"
}
Kuntić, V., Kosanić, M., Malešev, D.,& Radović, Z.. (1998). Spectrophotometric investigation of Pd(II)-rutin complexes and its application to rutin determination in tablets. in Pharmazie
Govi-Verlag Gmbh, Eschborn., 53(10), 724-726.
https://hdl.handle.net/21.15107/rcub_farfar_195
Kuntić V, Kosanić M, Malešev D, Radović Z. Spectrophotometric investigation of Pd(II)-rutin complexes and its application to rutin determination in tablets. in Pharmazie. 1998;53(10):724-726.
https://hdl.handle.net/21.15107/rcub_farfar_195 .
Kuntić, Vesna, Kosanić, M, Malešev, Dušan, Radović, Z, "Spectrophotometric investigation of Pd(II)-rutin complexes and its application to rutin determination in tablets" in Pharmazie, 53, no. 10 (1998):724-726,
https://hdl.handle.net/21.15107/rcub_farfar_195 .
12
11

Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution

Malešev, Dušan; Radović, Z; Kuntić, Vesna; Kosanić, M

(Marcel Dekker Inc, New York, 1997)

TY  - JOUR
AU  - Malešev, Dušan
AU  - Radović, Z
AU  - Kuntić, Vesna
AU  - Kosanić, M
PY  - 1997
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/172
AB  - The composition and the stability constant of the Al(III)-hesperidin complex were determined by suitable spectrophotometric methods and pH measurements. The formation of the complex, whose concentration stability constant log K-1 ranged from 3.46 at pH=4.0 to 4.54 at pH=5.0, was established. The conditions for the spectrophotometric determination of hesperidin, by means of the complex formation, were investigated. It was found that hesperidin can be determined in the range from 2.50x10(-5)M to 1.75x10(-4)M. The application to the determination of hesperidin in orange juice is demonstrated. All investigations were carried out with 70% methanolic solutions at room temperature (20 degrees C), constant values of pH (3.7), and ionic strength (0.01).
PB  - Marcel Dekker Inc, New York
T2  - Analytical Letters
T1  - Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution
VL  - 30
IS  - 5
SP  - 917
EP  - 926
DO  - 10.1080/00032719708002306
UR  - https://hdl.handle.net/21.15107/rcub_farfar_172
ER  - 
@article{
author = "Malešev, Dušan and Radović, Z and Kuntić, Vesna and Kosanić, M",
year = "1997",
abstract = "The composition and the stability constant of the Al(III)-hesperidin complex were determined by suitable spectrophotometric methods and pH measurements. The formation of the complex, whose concentration stability constant log K-1 ranged from 3.46 at pH=4.0 to 4.54 at pH=5.0, was established. The conditions for the spectrophotometric determination of hesperidin, by means of the complex formation, were investigated. It was found that hesperidin can be determined in the range from 2.50x10(-5)M to 1.75x10(-4)M. The application to the determination of hesperidin in orange juice is demonstrated. All investigations were carried out with 70% methanolic solutions at room temperature (20 degrees C), constant values of pH (3.7), and ionic strength (0.01).",
publisher = "Marcel Dekker Inc, New York",
journal = "Analytical Letters",
title = "Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution",
volume = "30",
number = "5",
pages = "917-926",
doi = "10.1080/00032719708002306",
url = "https://hdl.handle.net/21.15107/rcub_farfar_172"
}
Malešev, D., Radović, Z., Kuntić, V.,& Kosanić, M.. (1997). Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution. in Analytical Letters
Marcel Dekker Inc, New York., 30(5), 917-926.
https://doi.org/10.1080/00032719708002306
https://hdl.handle.net/21.15107/rcub_farfar_172
Malešev D, Radović Z, Kuntić V, Kosanić M. Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution. in Analytical Letters. 1997;30(5):917-926.
doi:10.1080/00032719708002306
https://hdl.handle.net/21.15107/rcub_farfar_172 .
Malešev, Dušan, Radović, Z, Kuntić, Vesna, Kosanić, M, "Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution" in Analytical Letters, 30, no. 5 (1997):917-926,
https://doi.org/10.1080/00032719708002306 .,
https://hdl.handle.net/21.15107/rcub_farfar_172 .
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