Đikanović, Daniela

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  • Đikanović, Daniela (5)
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Author's Bibliography

Determination of Flavonoids and Total Polyphenol Contents in Commercial Apple Juices

Pavun, Leposava; Uskoković-Marković, Snežana; Jelikić-Stankov, Milena; Đikanović, Daniela; Đurđević, Predrag

(Czech Academy Agricultural Sciences, Prague, 2018)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Uskoković-Marković, Snežana
AU  - Jelikić-Stankov, Milena
AU  - Đikanović, Daniela
AU  - Đurđević, Predrag
PY  - 2018
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3241
AB  - We propose a sensitive and selective spectrofluorimetric method for the determination of flavonoids as expressed in 'quercetin equivalent' in apple juices. The method is based on the strong emission of the aluminium(III)-quercetin complex at 480 nm with excitation at 420 nm, and it is successfully applied for the determination of flavonoids in commercial apple juices and compared with results obtained in reference spectrophotometric determination. The flavonoid content in commercial apple juices was found to range from 5.53 to 15.55 mg/l quercetin equivalent. The very good agreement between the two methods indicates the suitability of the proposed spectrofluorimetric method for the precise and accurate determination of flavonoids. In addition, the total polyphenol content was determined spectrophotometrically using the Folin-Ciocalteu (FC) method and the antioxidative activity of the tested juices was tested in a DPPH assay and these values were correlated with each other. The obtained profiles of compounds with antioxidative ability lead us to conclude that fruit juice labels based only on fruit % might sometimes misinform consumers.
PB  - Czech Academy Agricultural Sciences, Prague
T2  - Czech Journal of Food Sciences
T1  - Determination of Flavonoids and Total Polyphenol Contents in Commercial Apple Juices
VL  - 36
IS  - 3
SP  - 233
EP  - 238
DO  - 10.17221/211/2017-CJFS
ER  - 
@article{
author = "Pavun, Leposava and Uskoković-Marković, Snežana and Jelikić-Stankov, Milena and Đikanović, Daniela and Đurđević, Predrag",
year = "2018",
abstract = "We propose a sensitive and selective spectrofluorimetric method for the determination of flavonoids as expressed in 'quercetin equivalent' in apple juices. The method is based on the strong emission of the aluminium(III)-quercetin complex at 480 nm with excitation at 420 nm, and it is successfully applied for the determination of flavonoids in commercial apple juices and compared with results obtained in reference spectrophotometric determination. The flavonoid content in commercial apple juices was found to range from 5.53 to 15.55 mg/l quercetin equivalent. The very good agreement between the two methods indicates the suitability of the proposed spectrofluorimetric method for the precise and accurate determination of flavonoids. In addition, the total polyphenol content was determined spectrophotometrically using the Folin-Ciocalteu (FC) method and the antioxidative activity of the tested juices was tested in a DPPH assay and these values were correlated with each other. The obtained profiles of compounds with antioxidative ability lead us to conclude that fruit juice labels based only on fruit % might sometimes misinform consumers.",
publisher = "Czech Academy Agricultural Sciences, Prague",
journal = "Czech Journal of Food Sciences",
title = "Determination of Flavonoids and Total Polyphenol Contents in Commercial Apple Juices",
volume = "36",
number = "3",
pages = "233-238",
doi = "10.17221/211/2017-CJFS"
}
Pavun, L., Uskoković-Marković, S., Jelikić-Stankov, M., Đikanović, D.,& Đurđević, P.. (2018). Determination of Flavonoids and Total Polyphenol Contents in Commercial Apple Juices. in Czech Journal of Food Sciences
Czech Academy Agricultural Sciences, Prague., 36(3), 233-238.
https://doi.org/10.17221/211/2017-CJFS
Pavun L, Uskoković-Marković S, Jelikić-Stankov M, Đikanović D, Đurđević P. Determination of Flavonoids and Total Polyphenol Contents in Commercial Apple Juices. in Czech Journal of Food Sciences. 2018;36(3):233-238.
doi:10.17221/211/2017-CJFS .
Pavun, Leposava, Uskoković-Marković, Snežana, Jelikić-Stankov, Milena, Đikanović, Daniela, Đurđević, Predrag, "Determination of Flavonoids and Total Polyphenol Contents in Commercial Apple Juices" in Czech Journal of Food Sciences, 36, no. 3 (2018):233-238,
https://doi.org/10.17221/211/2017-CJFS . .
27
12
25

Spectrofluorimetric determination of quercetin in pharmaceutical dosage forms

Pavun, Leposava; Đurđević, Predrag; Jelikić-Stankov, Milena; Đikanović, Daniela; Ćirić, Andrija; Uskoković-Marković, Snežana

(Soc Chemists Technologists Madeconia, Skopje, 2014)

TY  - JOUR
AU  - Pavun, Leposava
AU  - Đurđević, Predrag
AU  - Jelikić-Stankov, Milena
AU  - Đikanović, Daniela
AU  - Ćirić, Andrija
AU  - Uskoković-Marković, Snežana
PY  - 2014
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2116
AB  - A simple, accurate and precise method based on the fluorescence properties of the aluminum(III)-quercetin complex, for the determination of quercetin, has been developed and validated. The complex has strong emission at pH 3.30, lambda(em) = 480 nm, with lambda(ex) = 420 nm. The linearity range of quercetin determination was 1.5-60.5 ng ml(-1) with LOD 0.09 ng ml(-1) and LOQ 0.27 ng ml(-1). Recovery values in the range of 99.9-100.2% indicate a good accuracy of the method. The established method was applied for the determination of quercetin in capsules, with a recovery value of 98.3%, standard deviation of 0.22% and coefficient of variation of 0.09%. The reliability of the method was checked by the newly developed RP-HPLC/UV method for capsules with the direct determination of quercetin after separation. The good agreement between the two methods indicates the applicability of the proposed spectrofluorimetric method for quercetin determination in pharmaceutical dosage forms, with high reproducibility, and enables the direct and simple determination without its prior extraction from samples. The proposed spectrofluorimetric method has much better sensitivity and LOD and LOQ values that are about 1000 times lower than data reported in the literature.
PB  - Soc Chemists Technologists Madeconia, Skopje
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Spectrofluorimetric determination of quercetin in pharmaceutical dosage forms
VL  - 33
IS  - 2
SP  - 209
EP  - 215
DO  - 10.20450/mjcce.2014.496
ER  - 
@article{
author = "Pavun, Leposava and Đurđević, Predrag and Jelikić-Stankov, Milena and Đikanović, Daniela and Ćirić, Andrija and Uskoković-Marković, Snežana",
year = "2014",
abstract = "A simple, accurate and precise method based on the fluorescence properties of the aluminum(III)-quercetin complex, for the determination of quercetin, has been developed and validated. The complex has strong emission at pH 3.30, lambda(em) = 480 nm, with lambda(ex) = 420 nm. The linearity range of quercetin determination was 1.5-60.5 ng ml(-1) with LOD 0.09 ng ml(-1) and LOQ 0.27 ng ml(-1). Recovery values in the range of 99.9-100.2% indicate a good accuracy of the method. The established method was applied for the determination of quercetin in capsules, with a recovery value of 98.3%, standard deviation of 0.22% and coefficient of variation of 0.09%. The reliability of the method was checked by the newly developed RP-HPLC/UV method for capsules with the direct determination of quercetin after separation. The good agreement between the two methods indicates the applicability of the proposed spectrofluorimetric method for quercetin determination in pharmaceutical dosage forms, with high reproducibility, and enables the direct and simple determination without its prior extraction from samples. The proposed spectrofluorimetric method has much better sensitivity and LOD and LOQ values that are about 1000 times lower than data reported in the literature.",
publisher = "Soc Chemists Technologists Madeconia, Skopje",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Spectrofluorimetric determination of quercetin in pharmaceutical dosage forms",
volume = "33",
number = "2",
pages = "209-215",
doi = "10.20450/mjcce.2014.496"
}
Pavun, L., Đurđević, P., Jelikić-Stankov, M., Đikanović, D., Ćirić, A.,& Uskoković-Marković, S.. (2014). Spectrofluorimetric determination of quercetin in pharmaceutical dosage forms. in Macedonian Journal of Chemistry and Chemical Engineering
Soc Chemists Technologists Madeconia, Skopje., 33(2), 209-215.
https://doi.org/10.20450/mjcce.2014.496
Pavun L, Đurđević P, Jelikić-Stankov M, Đikanović D, Ćirić A, Uskoković-Marković S. Spectrofluorimetric determination of quercetin in pharmaceutical dosage forms. in Macedonian Journal of Chemistry and Chemical Engineering. 2014;33(2):209-215.
doi:10.20450/mjcce.2014.496 .
Pavun, Leposava, Đurđević, Predrag, Jelikić-Stankov, Milena, Đikanović, Daniela, Ćirić, Andrija, Uskoković-Marković, Snežana, "Spectrofluorimetric determination of quercetin in pharmaceutical dosage forms" in Macedonian Journal of Chemistry and Chemical Engineering, 33, no. 2 (2014):209-215,
https://doi.org/10.20450/mjcce.2014.496 . .
11
6
11

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

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 .
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