TY  - JOUR
AU  - Janošević, Aleksandra
AU  - Ćirić-Marjanović, Gordana
PY  - 2010
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1438
AB  - Aniline was oxidized with ammonium peroxydisulfate (APS) in aqueous solutions of various phenolic acids: 5-sulfosalicylic acid (SSA), 3,5-dinitrosalicylic acid (DNSA) and gallic acid (GA). Polymerizations were performed at the constant molar ratios [acid]/[aniline] = 0.5 and [APS]/ /[aniline] = 1.25. The conductivity of synthesized polyaniline (PANI) is affected by the dopant anion type and decreases in order: PANI-SSA > > PANI-DNSA > PANI-GA, the last polymer being nonconducting. This decrease is in accordance with the increase of initial pH value of the reaction mixture. The differences in molecular structure of synthesized PANI have been revealed by FTIR spectroscopy. FTIR spectra of PANI-SSA and PANI-DNSA show typical features of PANI conductive emeraldine salt segments. On the contrary, FTIR spectrum of PANI-GA shows absence of bands typical for conducting PANI polaronic lattice, and indicates the higher oxidation state of this polymer than that of emeraldine, the presence of substituted phenazines as constitutional units, as well as significant content of monosubstituted benzene rings which reflects low polymerization degree and/or pronounced chain branching. The strong hydrogen bonding between GA and PANI can obstruct propagation of oligoanilines and formation of longer conducting PANI chains.
AB  - Polianilin (PANI) sintetisan je oksidacijom anilina u vodenim rastvorima fenolnih kiselina: 5-sulfosalicilne (SSA), 3,5-dinitrosalicilne (DNSA) i galne kiseline (GA), koristeći amonijum-peroksidisulfat (APS) kao oksidaciono sredstvo. Sinteze su urađene pri konstantnim polaznim molskim odnosima kiselina/anilin i APS/anilin. Utvrđeno je da sa porastom jačine fenolne kiseline raste električna provodljivost dobijenih polianilina. PANI-GA je neprovodan, PANI-DNSA pokazuje provodljivost ~10-3 S cm-1, dok je provodljivost PANI-SSA ~10-1 S cm-1. Na osnovu uporedne analize FTIR spektara protonovanih i deprotonovanih formi ovih polimera diskutovane su razlike u njihovoj molekulskoj strukturi.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Oxidation of aniline in the presence of phenolic acids
T1  - Oksidativna polimerizacija anilina u prisustvu fenolnih kiselina
VL  - 64
IS  - 3
SP  - 215
EP  - 220
DO  - 10.2298/HEMIND091221031J
ER  - 

@article{
author = "Janošević, Aleksandra and Ćirić-Marjanović, Gordana",
year = "2010",
abstract = "Aniline was oxidized with ammonium peroxydisulfate (APS) in aqueous solutions of various phenolic acids: 5-sulfosalicylic acid (SSA), 3,5-dinitrosalicylic acid (DNSA) and gallic acid (GA). Polymerizations were performed at the constant molar ratios [acid]/[aniline] = 0.5 and [APS]/ /[aniline] = 1.25. The conductivity of synthesized polyaniline (PANI) is affected by the dopant anion type and decreases in order: PANI-SSA > > PANI-DNSA > PANI-GA, the last polymer being nonconducting. This decrease is in accordance with the increase of initial pH value of the reaction mixture. The differences in molecular structure of synthesized PANI have been revealed by FTIR spectroscopy. FTIR spectra of PANI-SSA and PANI-DNSA show typical features of PANI conductive emeraldine salt segments. On the contrary, FTIR spectrum of PANI-GA shows absence of bands typical for conducting PANI polaronic lattice, and indicates the higher oxidation state of this polymer than that of emeraldine, the presence of substituted phenazines as constitutional units, as well as significant content of monosubstituted benzene rings which reflects low polymerization degree and/or pronounced chain branching. The strong hydrogen bonding between GA and PANI can obstruct propagation of oligoanilines and formation of longer conducting PANI chains., Polianilin (PANI) sintetisan je oksidacijom anilina u vodenim rastvorima fenolnih kiselina: 5-sulfosalicilne (SSA), 3,5-dinitrosalicilne (DNSA) i galne kiseline (GA), koristeći amonijum-peroksidisulfat (APS) kao oksidaciono sredstvo. Sinteze su urađene pri konstantnim polaznim molskim odnosima kiselina/anilin i APS/anilin. Utvrđeno je da sa porastom jačine fenolne kiseline raste električna provodljivost dobijenih polianilina. PANI-GA je neprovodan, PANI-DNSA pokazuje provodljivost ~10-3 S cm-1, dok je provodljivost PANI-SSA ~10-1 S cm-1. Na osnovu uporedne analize FTIR spektara protonovanih i deprotonovanih formi ovih polimera diskutovane su razlike u njihovoj molekulskoj strukturi.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Oxidation of aniline in the presence of phenolic acids, Oksidativna polimerizacija anilina u prisustvu fenolnih kiselina",
volume = "64",
number = "3",
pages = "215-220",
doi = "10.2298/HEMIND091221031J"
}

Janošević, A.,& Ćirić-Marjanović, G.. (2010). Oxidation of aniline in the presence of phenolic acids. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 64(3), 215-220.
https://doi.org/10.2298/HEMIND091221031J

Janošević A, Ćirić-Marjanović G. Oxidation of aniline in the presence of phenolic acids. in Hemijska industrija. 2010;64(3):215-220.
doi:10.2298/HEMIND091221031J .

Janošević, Aleksandra, Ćirić-Marjanović, Gordana, "Oxidation of aniline in the presence of phenolic acids" in Hemijska industrija, 64, no. 3 (2010):215-220,
https://doi.org/10.2298/HEMIND091221031J . .

TY  - JOUR
AU  - Janošević, Aleksandra
AU  - Ćirić-Marjanović, Gordana
AU  - Marjanović, Budimir
AU  - Trchova, Miroslava
AU  - Stejskal, Jaroslav
PY  - 2010
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1361
AB  - Self-assembled polyaniline nanorods were synthesized by the oxidation of aniline with ammonium peroxydisulfate in an aqueous solution in the presence of 3,5-dinitrosalicylic acid, using the template-free falling-pH method. The effects of the mole ratio of 3,5-dinitrosalicylic acid to aniline, i.e., of starting pH, monomer concentration, and reaction time on the yield of polymerization, molecular-weight distribution, molecular structure, morphology, and conductivity of the prepared polyanilines have been studied by gelpermeation chromatography. elemental analysis, FTIR and Raman spectroscopies, scanning and transmission electron microscopies, and conductivity measurements. The weight-average molecular weights and polydispersity index were in the range 36,400-54,900 and 3.7-7.6, respectively. Synthesized polyaniline nanorods have a diameter of 25-280 nm and a length of 0.2-1.31 mu m, and conductivities in the range (1.2-4.6) x 10(-2) S cm(-1). The formation mechanism of self-assembled polyaniline nanorods has been discussed.
PB  - Elsevier Science BV, Amsterdam
T2  - Materials Letters
T1  - 3,5-Dinitrosalicylic acid-assisted synthesis of self-assembled polyaniline nanorods
VL  - 64
IS  - 21
SP  - 2337
EP  - 2340
DO  - 10.1016/j.matlet.2010.07.041
ER  - 

@article{
author = "Janošević, Aleksandra and Ćirić-Marjanović, Gordana and Marjanović, Budimir and Trchova, Miroslava and Stejskal, Jaroslav",
year = "2010",
abstract = "Self-assembled polyaniline nanorods were synthesized by the oxidation of aniline with ammonium peroxydisulfate in an aqueous solution in the presence of 3,5-dinitrosalicylic acid, using the template-free falling-pH method. The effects of the mole ratio of 3,5-dinitrosalicylic acid to aniline, i.e., of starting pH, monomer concentration, and reaction time on the yield of polymerization, molecular-weight distribution, molecular structure, morphology, and conductivity of the prepared polyanilines have been studied by gelpermeation chromatography. elemental analysis, FTIR and Raman spectroscopies, scanning and transmission electron microscopies, and conductivity measurements. The weight-average molecular weights and polydispersity index were in the range 36,400-54,900 and 3.7-7.6, respectively. Synthesized polyaniline nanorods have a diameter of 25-280 nm and a length of 0.2-1.31 mu m, and conductivities in the range (1.2-4.6) x 10(-2) S cm(-1). The formation mechanism of self-assembled polyaniline nanorods has been discussed.",
publisher = "Elsevier Science BV, Amsterdam",
journal = "Materials Letters",
title = "3,5-Dinitrosalicylic acid-assisted synthesis of self-assembled polyaniline nanorods",
volume = "64",
number = "21",
pages = "2337-2340",
doi = "10.1016/j.matlet.2010.07.041"
}

Janošević, A., Ćirić-Marjanović, G., Marjanović, B., Trchova, M.,& Stejskal, J.. (2010). 3,5-Dinitrosalicylic acid-assisted synthesis of self-assembled polyaniline nanorods. in Materials Letters
Elsevier Science BV, Amsterdam., 64(21), 2337-2340.
https://doi.org/10.1016/j.matlet.2010.07.041

Janošević A, Ćirić-Marjanović G, Marjanović B, Trchova M, Stejskal J. 3,5-Dinitrosalicylic acid-assisted synthesis of self-assembled polyaniline nanorods. in Materials Letters. 2010;64(21):2337-2340.
doi:10.1016/j.matlet.2010.07.041 .

Janošević, Aleksandra, Ćirić-Marjanović, Gordana, Marjanović, Budimir, Trchova, Miroslava, Stejskal, Jaroslav, "3,5-Dinitrosalicylic acid-assisted synthesis of self-assembled polyaniline nanorods" in Materials Letters, 64, no. 21 (2010):2337-2340,
https://doi.org/10.1016/j.matlet.2010.07.041 . .

TY  - JOUR
AU  - Holclajtner-Antunović, Ivanka
AU  - Bajuk-Bogdanović, Danica
AU  - Todorović, Marija R.
AU  - Mioč, Ubavka B.
AU  - Zakrzewska, Joanna
AU  - Uskoković-Marković, Snežana
PY  - 2008
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1031
AB  - The various molecular species of 12-tungstophosporic acid (WPA) in aqueous solutions of different pH values (from 1 to 11.5) were investigated by UV, IR, and NMR spectroscopy. The dependence of the attained equilibrium composition in solution on time, concentration of WPA, and type of buffer used was studied. Obtained results indicate that the buffer type and pH value greatly determine the equilibrium composition in the solution. The Keggin structure of the WPA is sustained only up to pH 1.5. With further increase in pH, the decomposition of Keggin anion does not lead directly to the monovacant lacunary anion. Between 1.5 and 2.0. the structures with 2 phosphorus atoms from the Dawson series are dominant as intermediate species. In the pH range 3.5-7.5, WPA is present in the form of the monovacant lacunary Keggin anion. These results are of special importance for the biomedical and catalytic applications of heteropoly compounds (HPCs) and for an improved understanding of the mechanism of their functioning.
PB  - Canadian Science Publishing, Nrc Research Press, Ottawa
T2  - Canadian Journal of Chemistry
T1  - Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution
VL  - 86
IS  - 10
SP  - 996
EP  - 1004
DO  - 10.1139/V08-138
ER  - 

@article{
author = "Holclajtner-Antunović, Ivanka and Bajuk-Bogdanović, Danica and Todorović, Marija R. and Mioč, Ubavka B. and Zakrzewska, Joanna and Uskoković-Marković, Snežana",
year = "2008",
abstract = "The various molecular species of 12-tungstophosporic acid (WPA) in aqueous solutions of different pH values (from 1 to 11.5) were investigated by UV, IR, and NMR spectroscopy. The dependence of the attained equilibrium composition in solution on time, concentration of WPA, and type of buffer used was studied. Obtained results indicate that the buffer type and pH value greatly determine the equilibrium composition in the solution. The Keggin structure of the WPA is sustained only up to pH 1.5. With further increase in pH, the decomposition of Keggin anion does not lead directly to the monovacant lacunary anion. Between 1.5 and 2.0. the structures with 2 phosphorus atoms from the Dawson series are dominant as intermediate species. In the pH range 3.5-7.5, WPA is present in the form of the monovacant lacunary Keggin anion. These results are of special importance for the biomedical and catalytic applications of heteropoly compounds (HPCs) and for an improved understanding of the mechanism of their functioning.",
publisher = "Canadian Science Publishing, Nrc Research Press, Ottawa",
journal = "Canadian Journal of Chemistry",
title = "Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution",
volume = "86",
number = "10",
pages = "996-1004",
doi = "10.1139/V08-138"
}

Holclajtner-Antunović, I., Bajuk-Bogdanović, D., Todorović, M. R., Mioč, U. B., Zakrzewska, J.,& Uskoković-Marković, S.. (2008). Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution. in Canadian Journal of Chemistry
Canadian Science Publishing, Nrc Research Press, Ottawa., 86(10), 996-1004.
https://doi.org/10.1139/V08-138

Holclajtner-Antunović I, Bajuk-Bogdanović D, Todorović MR, Mioč UB, Zakrzewska J, Uskoković-Marković S. Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution. in Canadian Journal of Chemistry. 2008;86(10):996-1004.
doi:10.1139/V08-138 .

Holclajtner-Antunović, Ivanka, Bajuk-Bogdanović, Danica, Todorović, Marija R., Mioč, Ubavka B., Zakrzewska, Joanna, Uskoković-Marković, Snežana, "Sectroscopic study of stability and molecular species of 12-tungstophosphoric acid in aqueous solution" in Canadian Journal of Chemistry, 86, no. 10 (2008):996-1004,
https://doi.org/10.1139/V08-138 . .

TY  - JOUR
AU  - Popović, Gordana
AU  - Čakar, Mira
AU  - Agbaba, Danica
PY  - 2007
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/905
AB  - Simple, rapid, and precise densitometric TLC methods have been established for simultaneous determination of loratadine and preservatives in loratadine-sodium benzoate and loratadine-methylparaben-propylparaben mixtures. Chromatography was performed on aluminium plates precoated with silica gel 60 F-254. The mobile phases were n-butyl acetate-carbon tetrachloride-acetic acid-acetonitrile 3:6:0.2:3 (v/v) for loratadine-sodium benzoate mixtures and ethyl acetate-n-hexane-methanol-ammonia-diethylamine 1:4:0.8:0.4:2 (v/v) for loratadine-methylparaben-propylparaben mixtures. Chromatographic zones were scanned in reflectance-absorbance mode at 240 nm for the former mixture and 275 mu for the latter. Relationships between peak areas and amounts of the compounds were evaluated by linear regression analysis in the concentration ranges 0.3-0.7 mu g per band for loratadine, methylparaben, and sodium benzoate and 0.03-0.07 mu g per band for propylparaben. Mean recovery for all the compounds varied from 98.3 to 102.5 %. Detection and quantification limits ranged from 0.004 to 0.03 and from 0.01 to 0.1 mu g per band, respectively. The proposed method was used for simultaneous determination of loratadine. and the preservatives in commercial medicinal syrups.
PB  - Univ Silesia, Inst Chemistry, Katowice
T2  - Acta Chromatographica
T1  - Simultaneous determination of loratadine and preservatives in syrups by thin-layer chromatography
VL  - 19
SP  - 161
EP  - 169
UR  - https://hdl.handle.net/21.15107/rcub_farfar_905
ER  - 

@article{
author = "Popović, Gordana and Čakar, Mira and Agbaba, Danica",
year = "2007",
abstract = "Simple, rapid, and precise densitometric TLC methods have been established for simultaneous determination of loratadine and preservatives in loratadine-sodium benzoate and loratadine-methylparaben-propylparaben mixtures. Chromatography was performed on aluminium plates precoated with silica gel 60 F-254. The mobile phases were n-butyl acetate-carbon tetrachloride-acetic acid-acetonitrile 3:6:0.2:3 (v/v) for loratadine-sodium benzoate mixtures and ethyl acetate-n-hexane-methanol-ammonia-diethylamine 1:4:0.8:0.4:2 (v/v) for loratadine-methylparaben-propylparaben mixtures. Chromatographic zones were scanned in reflectance-absorbance mode at 240 nm for the former mixture and 275 mu for the latter. Relationships between peak areas and amounts of the compounds were evaluated by linear regression analysis in the concentration ranges 0.3-0.7 mu g per band for loratadine, methylparaben, and sodium benzoate and 0.03-0.07 mu g per band for propylparaben. Mean recovery for all the compounds varied from 98.3 to 102.5 %. Detection and quantification limits ranged from 0.004 to 0.03 and from 0.01 to 0.1 mu g per band, respectively. The proposed method was used for simultaneous determination of loratadine. and the preservatives in commercial medicinal syrups.",
publisher = "Univ Silesia, Inst Chemistry, Katowice",
journal = "Acta Chromatographica",
title = "Simultaneous determination of loratadine and preservatives in syrups by thin-layer chromatography",
volume = "19",
pages = "161-169",
url = "https://hdl.handle.net/21.15107/rcub_farfar_905"
}

Popović, G., Čakar, M.,& Agbaba, D.. (2007). Simultaneous determination of loratadine and preservatives in syrups by thin-layer chromatography. in Acta Chromatographica
Univ Silesia, Inst Chemistry, Katowice., 19, 161-169.
https://hdl.handle.net/21.15107/rcub_farfar_905

Popović G, Čakar M, Agbaba D. Simultaneous determination of loratadine and preservatives in syrups by thin-layer chromatography. in Acta Chromatographica. 2007;19:161-169.
https://hdl.handle.net/21.15107/rcub_farfar_905 .

Popović, Gordana, Čakar, Mira, Agbaba, Danica, "Simultaneous determination of loratadine and preservatives in syrups by thin-layer chromatography" in Acta Chromatographica, 19 (2007):161-169,
https://hdl.handle.net/21.15107/rcub_farfar_905 .

TY  - JOUR
AU  - Jelikić-Stankov, Milena
AU  - Uskoković-Marković, Snežana
AU  - Holclajtner-Antunović, Ivanka
AU  - Todorović, Marija R.
AU  - Đurđević, Predrag
PY  - 2007
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/912
AB  - Molybdenum, vanadium and tungsten compounds are widely applied as analytical reagents for determination of numerous pharmacologically active substances and different biochemical parameters. Recent data from the available literature pointed to a very potent biomedical activity of compounds containing these trace elements. The present paper represents a survey on the structure and chemical properties of these compounds, as well as on their biological activity, mostly based on their interaction with cations of biomolecules, such as phospholipids and proteins. Besides, their potent inhibitory effects on cellular targets, bacterial and viral DNA and RNA polymerases will be discussed, as well. Numerous authors clearly demonstrated the antiviral (especially anti-HIV), anticoagulant and antineoplastic properties of the compounds containing the above trace elements. It has been also shown that these compounds act on some cellular enzymatic systems leading to the normalisation of blood pressure, blood glucose and serum lipid levels. Also, compounds of these trace elements represent potent antiobesity agents and express hepatoprotective and antioxidative stress activity.
PB  - Elsevier Gmbh, Urban & Fischer Verlag, Jena
T2  - Journal of Trace Elements in Medicine and Biology
T1  - Compounds of Mo, V and W in biochemistry and their biomedical activity
VL  - 21
IS  - 1
SP  - 8
EP  - 16
DO  - 10.1016/j.jtemb.2006.11.004
ER  - 

@article{
author = "Jelikić-Stankov, Milena and Uskoković-Marković, Snežana and Holclajtner-Antunović, Ivanka and Todorović, Marija R. and Đurđević, Predrag",
year = "2007",
abstract = "Molybdenum, vanadium and tungsten compounds are widely applied as analytical reagents for determination of numerous pharmacologically active substances and different biochemical parameters. Recent data from the available literature pointed to a very potent biomedical activity of compounds containing these trace elements. The present paper represents a survey on the structure and chemical properties of these compounds, as well as on their biological activity, mostly based on their interaction with cations of biomolecules, such as phospholipids and proteins. Besides, their potent inhibitory effects on cellular targets, bacterial and viral DNA and RNA polymerases will be discussed, as well. Numerous authors clearly demonstrated the antiviral (especially anti-HIV), anticoagulant and antineoplastic properties of the compounds containing the above trace elements. It has been also shown that these compounds act on some cellular enzymatic systems leading to the normalisation of blood pressure, blood glucose and serum lipid levels. Also, compounds of these trace elements represent potent antiobesity agents and express hepatoprotective and antioxidative stress activity.",
publisher = "Elsevier Gmbh, Urban & Fischer Verlag, Jena",
journal = "Journal of Trace Elements in Medicine and Biology",
title = "Compounds of Mo, V and W in biochemistry and their biomedical activity",
volume = "21",
number = "1",
pages = "8-16",
doi = "10.1016/j.jtemb.2006.11.004"
}

Jelikić-Stankov, M., Uskoković-Marković, S., Holclajtner-Antunović, I., Todorović, M. R.,& Đurđević, P.. (2007). Compounds of Mo, V and W in biochemistry and their biomedical activity. in Journal of Trace Elements in Medicine and Biology
Elsevier Gmbh, Urban & Fischer Verlag, Jena., 21(1), 8-16.
https://doi.org/10.1016/j.jtemb.2006.11.004

Jelikić-Stankov M, Uskoković-Marković S, Holclajtner-Antunović I, Todorović MR, Đurđević P. Compounds of Mo, V and W in biochemistry and their biomedical activity. in Journal of Trace Elements in Medicine and Biology. 2007;21(1):8-16.
doi:10.1016/j.jtemb.2006.11.004 .

Jelikić-Stankov, Milena, Uskoković-Marković, Snežana, Holclajtner-Antunović, Ivanka, Todorović, Marija R., Đurđević, Predrag, "Compounds of Mo, V and W in biochemistry and their biomedical activity" in Journal of Trace Elements in Medicine and Biology, 21, no. 1 (2007):8-16,
https://doi.org/10.1016/j.jtemb.2006.11.004 . .

TY  - JOUR
AU  - Kuntić, Vesna
AU  - Stanojević, Maja
AU  - Holclajtner-Antunović, Ivanka
AU  - Uskoković-Marković, Snežana
AU  - Mioč, Ubavka B.
AU  - Todorović, Marija R.
AU  - Jovanović, Tanja
AU  - Vukojević, Vladana
PY  - 2006
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/837
AB  - Compounds of phosphotungstic acid (WPA) containing the amino acids alanine (WPA-Ala) or glycine (WPA-Gly) as counter cations were synthesized and characterized by elemental analysis, thermal analysis, and IR spectroscopy. Cellular toxicity was assessed by the trypan blue exclusion method, and the antiviral activity of WPA and the modified WPA compounds was tested against herpes simplex viruses (HSV) type 1 and type 2. Biological assays indicate that the newly synthesized compounds exhibit no evident cytotoxic effects on Vero cells and negligible antiviral activity against HSV-1 and HSV-2.
PB  - Springer Wien, Wien
T2  - Monatshefte für Chemie Chemical Monthly
T1  - Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid
VL  - 137
IS  - 6
SP  - 803
EP  - 810
DO  - 10.1007/s00706-006-0467-3
ER  - 

@article{
author = "Kuntić, Vesna and Stanojević, Maja and Holclajtner-Antunović, Ivanka and Uskoković-Marković, Snežana and Mioč, Ubavka B. and Todorović, Marija R. and Jovanović, Tanja and Vukojević, Vladana",
year = "2006",
abstract = "Compounds of phosphotungstic acid (WPA) containing the amino acids alanine (WPA-Ala) or glycine (WPA-Gly) as counter cations were synthesized and characterized by elemental analysis, thermal analysis, and IR spectroscopy. Cellular toxicity was assessed by the trypan blue exclusion method, and the antiviral activity of WPA and the modified WPA compounds was tested against herpes simplex viruses (HSV) type 1 and type 2. Biological assays indicate that the newly synthesized compounds exhibit no evident cytotoxic effects on Vero cells and negligible antiviral activity against HSV-1 and HSV-2.",
publisher = "Springer Wien, Wien",
journal = "Monatshefte für Chemie Chemical Monthly",
title = "Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid",
volume = "137",
number = "6",
pages = "803-810",
doi = "10.1007/s00706-006-0467-3"
}

Kuntić, V., Stanojević, M., Holclajtner-Antunović, I., Uskoković-Marković, S., Mioč, U. B., Todorović, M. R., Jovanović, T.,& Vukojević, V.. (2006). Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid. in Monatshefte für Chemie Chemical Monthly
Springer Wien, Wien., 137(6), 803-810.
https://doi.org/10.1007/s00706-006-0467-3

Kuntić V, Stanojević M, Holclajtner-Antunović I, Uskoković-Marković S, Mioč UB, Todorović MR, Jovanović T, Vukojević V. Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid. in Monatshefte für Chemie Chemical Monthly. 2006;137(6):803-810.
doi:10.1007/s00706-006-0467-3 .

Kuntić, Vesna, Stanojević, Maja, Holclajtner-Antunović, Ivanka, Uskoković-Marković, Snežana, Mioč, Ubavka B., Todorović, Marija R., Jovanović, Tanja, Vukojević, Vladana, "Synthesis, characterization, and biological activity of amino acid derivatives of the heteropolytungstophosphoric acid" in Monatshefte für Chemie Chemical Monthly, 137, no. 6 (2006):803-810,
https://doi.org/10.1007/s00706-006-0467-3 . .

TY  - JOUR
AU  - Uskoković-Marković, Snežana
AU  - Todorović, M.
AU  - Mioč, Ubavka B.
AU  - Antunović-Holclajtner, I.
AU  - Andrić, V.
PY  - 2006
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/698
AB  - In this study, we have developed a sensitive, rapid and simple procedure for the energy dispersive X-ray fluorescence (EDXRF) spectrometry measurement of tungsten in tobacco plant parts. Only 0.1 g of dried plant material is needed instead of the usual I g. EDXRF spectrometry is used for quantitative measurement, after the foliar application of solutions of tungstophosphoric acid (WPA), its magnesium salt and compounds with glycine (Gly) and alanine (Ala), in exact quantities. After that, the leaves, trunks and summits were collected and prepared separately. Tungsten is determined directly in raw dried material, and the overlap of the tungsten peak with zinc's that is present is avoided by the spectral deconvolution to obtain quantitative results. The prepared dry tablets weighed 100 mg, and measurement time was 2000 s. The radioisotope excitation source used was Cd-109 and tungsten was identified and quantified at the L-alpha 1 and L-alpha 2 lines at the energies of 8397.6eV and 8335.2eV, respectively. EDXRF spectrometry was applied in a wide range of concentrations (up to 2000 mg/kg), with an estimated detection concentration limit of 15 mg/kg, calculated on dried material. Quantitative analysis of different parts of the treated plant plus the washings gave 94.47% recovery of the applied tungsten in different compound forms. After the foliar application of investigated WPA compounds, there were noticed both vertical and horizontal distributions of tungsten through out the tobacco plants, according to the EDXRF spectrometry results. This conclusion is also in agreement with the positive effects of WPA on Tobacco mosaic tobamovirus (TMV) infection of Nicotiana tabacum (Solanaceae).
PB  - Elsevier Science BV, Amsterdam
T2  - Talanta
T1  - EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds
VL  - 70
IS  - 2
SP  - 301
EP  - 306
DO  - 10.1016/j.talanta.2006.02.041
ER  - 

@article{
author = "Uskoković-Marković, Snežana and Todorović, M. and Mioč, Ubavka B. and Antunović-Holclajtner, I. and Andrić, V.",
year = "2006",
abstract = "In this study, we have developed a sensitive, rapid and simple procedure for the energy dispersive X-ray fluorescence (EDXRF) spectrometry measurement of tungsten in tobacco plant parts. Only 0.1 g of dried plant material is needed instead of the usual I g. EDXRF spectrometry is used for quantitative measurement, after the foliar application of solutions of tungstophosphoric acid (WPA), its magnesium salt and compounds with glycine (Gly) and alanine (Ala), in exact quantities. After that, the leaves, trunks and summits were collected and prepared separately. Tungsten is determined directly in raw dried material, and the overlap of the tungsten peak with zinc's that is present is avoided by the spectral deconvolution to obtain quantitative results. The prepared dry tablets weighed 100 mg, and measurement time was 2000 s. The radioisotope excitation source used was Cd-109 and tungsten was identified and quantified at the L-alpha 1 and L-alpha 2 lines at the energies of 8397.6eV and 8335.2eV, respectively. EDXRF spectrometry was applied in a wide range of concentrations (up to 2000 mg/kg), with an estimated detection concentration limit of 15 mg/kg, calculated on dried material. Quantitative analysis of different parts of the treated plant plus the washings gave 94.47% recovery of the applied tungsten in different compound forms. After the foliar application of investigated WPA compounds, there were noticed both vertical and horizontal distributions of tungsten through out the tobacco plants, according to the EDXRF spectrometry results. This conclusion is also in agreement with the positive effects of WPA on Tobacco mosaic tobamovirus (TMV) infection of Nicotiana tabacum (Solanaceae).",
publisher = "Elsevier Science BV, Amsterdam",
journal = "Talanta",
title = "EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds",
volume = "70",
number = "2",
pages = "301-306",
doi = "10.1016/j.talanta.2006.02.041"
}

Uskoković-Marković, S., Todorović, M., Mioč, U. B., Antunović-Holclajtner, I.,& Andrić, V.. (2006). EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds. in Talanta
Elsevier Science BV, Amsterdam., 70(2), 301-306.
https://doi.org/10.1016/j.talanta.2006.02.041

Uskoković-Marković S, Todorović M, Mioč UB, Antunović-Holclajtner I, Andrić V. EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds. in Talanta. 2006;70(2):301-306.
doi:10.1016/j.talanta.2006.02.041 .

Uskoković-Marković, Snežana, Todorović, M., Mioč, Ubavka B., Antunović-Holclajtner, I., Andrić, V., "EDXRF spectrometry determination of tungsten in tobacco plants after antiviral treatment with 12-tungstophosphoric acid and its compounds" in Talanta, 70, no. 2 (2006):301-306,
https://doi.org/10.1016/j.talanta.2006.02.041 . .