Ražić, Slavica

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  • Ražić, Slavica (3)
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Author's Bibliography

Fabrication of cobalt oxide supported carbon paste electrode for sensitive and selective Levofloxacin sensing

Mutić, Tijana; Ognjanović, Miloš; Stanković, Dalibor; Ražić, Slavica

(Division of Analytical Chemistry of the European Chemical Society, 2023)

TY  - CONF
AU  - Mutić, Tijana
AU  - Ognjanović, Miloš
AU  - Stanković, Dalibor
AU  - Ražić, Slavica
PY  - 2023
UR  - https://www.euroanalysis2023.ch/Docs/EA23_Abstract_Book.pdf
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7321
AB  - In this study, a modified cobalt oxide (Co3O4) carbon paste electrode was prepared for the detection of Levofloxacin. Co3O4 nanoparticles were synthesized by the chemical coprecipitation method. The electrochemical properties of LEV at this electrode were investigated by cyclic voltammetry (CV), square wave voltammetry (SWV), and differential pulse voltammetry (DPV). In addition, electrochemical impedance spectroscopy (EIS), inductively coupled plasma–optical emission spectrometry (ICP-OES), transmission and scanning electron microscopy (TEM and SEM) and X-ray diffraction (XRD) were used to characterize the synthesized materials.
PB  - Division of Analytical Chemistry of the European Chemical Society
C3  - Abstract Book - Euroanalysis 2023 - "Analytical Probing  of Complex Systems", 27–31 August 2023, Geneva, Switzerland
T1  - Fabrication of cobalt oxide supported carbon paste electrode for sensitive and selective Levofloxacin sensing
SP  - 302
EP  - 303
UR  - https://hdl.handle.net/21.15107/rcub_cer_7321
ER  - 
@conference{
author = "Mutić, Tijana and Ognjanović, Miloš and Stanković, Dalibor and Ražić, Slavica",
year = "2023",
abstract = "In this study, a modified cobalt oxide (Co3O4) carbon paste electrode was prepared for the detection of Levofloxacin. Co3O4 nanoparticles were synthesized by the chemical coprecipitation method. The electrochemical properties of LEV at this electrode were investigated by cyclic voltammetry (CV), square wave voltammetry (SWV), and differential pulse voltammetry (DPV). In addition, electrochemical impedance spectroscopy (EIS), inductively coupled plasma–optical emission spectrometry (ICP-OES), transmission and scanning electron microscopy (TEM and SEM) and X-ray diffraction (XRD) were used to characterize the synthesized materials.",
publisher = "Division of Analytical Chemistry of the European Chemical Society",
journal = "Abstract Book - Euroanalysis 2023 - "Analytical Probing  of Complex Systems", 27–31 August 2023, Geneva, Switzerland",
title = "Fabrication of cobalt oxide supported carbon paste electrode for sensitive and selective Levofloxacin sensing",
pages = "302-303",
url = "https://hdl.handle.net/21.15107/rcub_cer_7321"
}
Mutić, T., Ognjanović, M., Stanković, D.,& Ražić, S.. (2023). Fabrication of cobalt oxide supported carbon paste electrode for sensitive and selective Levofloxacin sensing. in Abstract Book - Euroanalysis 2023 - "Analytical Probing  of Complex Systems", 27–31 August 2023, Geneva, Switzerland
Division of Analytical Chemistry of the European Chemical Society., 302-303.
https://hdl.handle.net/21.15107/rcub_cer_7321
Mutić T, Ognjanović M, Stanković D, Ražić S. Fabrication of cobalt oxide supported carbon paste electrode for sensitive and selective Levofloxacin sensing. in Abstract Book - Euroanalysis 2023 - "Analytical Probing  of Complex Systems", 27–31 August 2023, Geneva, Switzerland. 2023;:302-303.
https://hdl.handle.net/21.15107/rcub_cer_7321 .
Mutić, Tijana, Ognjanović, Miloš, Stanković, Dalibor, Ražić, Slavica, "Fabrication of cobalt oxide supported carbon paste electrode for sensitive and selective Levofloxacin sensing" in Abstract Book - Euroanalysis 2023 - "Analytical Probing  of Complex Systems", 27–31 August 2023, Geneva, Switzerland (2023):302-303,
https://hdl.handle.net/21.15107/rcub_cer_7321 .

Is a Lead Isotope Ratios in Wine Good Marker for Origin Assessment?

Đurđić, Slađana; Stanković, Vesna; Ražić, Slavica; Mutić, Jelena

(Frontiers in Chemistry, 2021)

TY  - JOUR
AU  - Đurđić, Slađana
AU  - Stanković, Vesna
AU  - Ražić, Slavica
AU  - Mutić, Jelena
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4831
AB  - Lead isotope ratio pattern (206Pb/207Pb, 208Pb/206Pb, 206Pb/204Pb, 207Pb/204Pb, and 208Pb/204Pb) was analyzed in 59 samples of Serbian wine, from four geographical regions. By utilization of powerful inductively coupled plasma mass spectrometry (ICP-QMS), lead isotope ratios were used as unique “fingerprint”, when combined with multivariate methods of analysis (Principal Component Analysis), provided information on the geographical origin of wine. In validation of ICP- QMS method and quantitative analysis, the certified reference material NIST SRM 981 was employed to test the mass-bias correction and thallium isotopes 203Tl and 205Tl (NIST SRM 997) as an internal standard. The obtained results were discussed in correlation with the corresponding values of LIRs of different European and Australian wines. In addition, the impact of anthropogenic Pb from different sources on the total Pb isotopic composition in Serbian wines was analyzed too. On the other side, the obtained values of Pb content were compared with the applicable health safety standards, according to the International Code of Oenological Practices.
PB  - Frontiers in Chemistry
T2  - Frontiers in Chemistry
T1  - Is a Lead Isotope Ratios in Wine Good Marker for Origin Assessment?
VL  - 9
SP  - 746695
DO  - 10.3389/fchem.2021.746695
ER  - 
@article{
author = "Đurđić, Slađana and Stanković, Vesna and Ražić, Slavica and Mutić, Jelena",
year = "2021",
abstract = "Lead isotope ratio pattern (206Pb/207Pb, 208Pb/206Pb, 206Pb/204Pb, 207Pb/204Pb, and 208Pb/204Pb) was analyzed in 59 samples of Serbian wine, from four geographical regions. By utilization of powerful inductively coupled plasma mass spectrometry (ICP-QMS), lead isotope ratios were used as unique “fingerprint”, when combined with multivariate methods of analysis (Principal Component Analysis), provided information on the geographical origin of wine. In validation of ICP- QMS method and quantitative analysis, the certified reference material NIST SRM 981 was employed to test the mass-bias correction and thallium isotopes 203Tl and 205Tl (NIST SRM 997) as an internal standard. The obtained results were discussed in correlation with the corresponding values of LIRs of different European and Australian wines. In addition, the impact of anthropogenic Pb from different sources on the total Pb isotopic composition in Serbian wines was analyzed too. On the other side, the obtained values of Pb content were compared with the applicable health safety standards, according to the International Code of Oenological Practices.",
publisher = "Frontiers in Chemistry",
journal = "Frontiers in Chemistry",
title = "Is a Lead Isotope Ratios in Wine Good Marker for Origin Assessment?",
volume = "9",
pages = "746695",
doi = "10.3389/fchem.2021.746695"
}
Đurđić, S., Stanković, V., Ražić, S.,& Mutić, J.. (2021). Is a Lead Isotope Ratios in Wine Good Marker for Origin Assessment?. in Frontiers in Chemistry
Frontiers in Chemistry., 9, 746695.
https://doi.org/10.3389/fchem.2021.746695
Đurđić S, Stanković V, Ražić S, Mutić J. Is a Lead Isotope Ratios in Wine Good Marker for Origin Assessment?. in Frontiers in Chemistry. 2021;9:746695.
doi:10.3389/fchem.2021.746695 .
Đurđić, Slađana, Stanković, Vesna, Ražić, Slavica, Mutić, Jelena, "Is a Lead Isotope Ratios in Wine Good Marker for Origin Assessment?" in Frontiers in Chemistry, 9 (2021):746695,
https://doi.org/10.3389/fchem.2021.746695 . .
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Lead isotope ratios as tool for elucidation of chemical environment in a system of Macrolepiota procera (Scop.) Singer - soil

Đurđić, Slađana; Stanković, Vesna; Ražić, Slavica; Mutić, Jelena

(Springer, 2020)

TY  - JOUR
AU  - Đurđić, Slađana
AU  - Stanković, Vesna
AU  - Ražić, Slavica
AU  - Mutić, Jelena
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3479
AB  - The analysis of isotope ratios of lead in the mushrooms and soil, where they were grown, assisted with a principal component analysis, offered a new perspective for understanding possible chemical environment in a real setup of those compartments. The content of lead and its isotope compositions were determined in soil samples and mushroom Macrolepiota procera from unpolluted area of Mountain Goč, Serbia. Sequential extraction procedure based on the Commission of the European Community Bureau of Reference (BCR) was applied on soil samples in order to determine the distribution of lead in the labile and un-labile fractions of the soil. Caps and stipes of mushrooms were subjected to microwave acid-assisted digestion prior to measurements by inductively coupled plasma quadrupole mass spectrometer for determination of lead content and lead isotope ratios. Information about the chemical fractionation of Pb in soil, Pb isotopic data from soil fractions and fruiting bodies allowed a more detailed insight on the uptake mechanisms. Lead was predominantly associated with reducible fraction (~ 60%). Only its small portion (∼ 1%) was present in the exchangeable and acid-extractable fractions suggesting the low mobility of Pb. Lead isotope analysis revealed the presence of anthropogenic lead in the surface soil. Significant lower 206Pb/207Pb compared with other fractions was found in exchangeable and acid-soluble fraction (1.331 ± 0.010), which corresponds to the isotope ratio of European gasoline. The highest 206Pb/207Pb ratio was observed in reducible fraction (1.162 ± 0.007), while in oxidizable and residual fraction, those values were similar (1.159 ± 0.006 and 1.159 ± 0.004, respectively). Distinction of exchangeable and acid-extractable fractions from others was also confirmed, for the first time, by principal component analysis. The analysis of four isotope ratios (206Pb/207Pb, 208Pb/206Pb, 206Pb/204Pb, and 207Pb/204Pb) indicated that the analyzed M. procera accumulates lead from the first two fractions of topsoil layers.
PB  - Springer
T2  - Environmental Science and Pollution Research
T1  - Lead isotope ratios as tool for elucidation of chemical environment in a system of Macrolepiota procera (Scop.) Singer - soil
DO  - 10.1007/s11356-020-07947-6
ER  - 
@article{
author = "Đurđić, Slađana and Stanković, Vesna and Ražić, Slavica and Mutić, Jelena",
year = "2020",
abstract = "The analysis of isotope ratios of lead in the mushrooms and soil, where they were grown, assisted with a principal component analysis, offered a new perspective for understanding possible chemical environment in a real setup of those compartments. The content of lead and its isotope compositions were determined in soil samples and mushroom Macrolepiota procera from unpolluted area of Mountain Goč, Serbia. Sequential extraction procedure based on the Commission of the European Community Bureau of Reference (BCR) was applied on soil samples in order to determine the distribution of lead in the labile and un-labile fractions of the soil. Caps and stipes of mushrooms were subjected to microwave acid-assisted digestion prior to measurements by inductively coupled plasma quadrupole mass spectrometer for determination of lead content and lead isotope ratios. Information about the chemical fractionation of Pb in soil, Pb isotopic data from soil fractions and fruiting bodies allowed a more detailed insight on the uptake mechanisms. Lead was predominantly associated with reducible fraction (~ 60%). Only its small portion (∼ 1%) was present in the exchangeable and acid-extractable fractions suggesting the low mobility of Pb. Lead isotope analysis revealed the presence of anthropogenic lead in the surface soil. Significant lower 206Pb/207Pb compared with other fractions was found in exchangeable and acid-soluble fraction (1.331 ± 0.010), which corresponds to the isotope ratio of European gasoline. The highest 206Pb/207Pb ratio was observed in reducible fraction (1.162 ± 0.007), while in oxidizable and residual fraction, those values were similar (1.159 ± 0.006 and 1.159 ± 0.004, respectively). Distinction of exchangeable and acid-extractable fractions from others was also confirmed, for the first time, by principal component analysis. The analysis of four isotope ratios (206Pb/207Pb, 208Pb/206Pb, 206Pb/204Pb, and 207Pb/204Pb) indicated that the analyzed M. procera accumulates lead from the first two fractions of topsoil layers.",
publisher = "Springer",
journal = "Environmental Science and Pollution Research",
title = "Lead isotope ratios as tool for elucidation of chemical environment in a system of Macrolepiota procera (Scop.) Singer - soil",
doi = "10.1007/s11356-020-07947-6"
}
Đurđić, S., Stanković, V., Ražić, S.,& Mutić, J.. (2020). Lead isotope ratios as tool for elucidation of chemical environment in a system of Macrolepiota procera (Scop.) Singer - soil. in Environmental Science and Pollution Research
Springer..
https://doi.org/10.1007/s11356-020-07947-6
Đurđić S, Stanković V, Ražić S, Mutić J. Lead isotope ratios as tool for elucidation of chemical environment in a system of Macrolepiota procera (Scop.) Singer - soil. in Environmental Science and Pollution Research. 2020;.
doi:10.1007/s11356-020-07947-6 .
Đurđić, Slađana, Stanković, Vesna, Ražić, Slavica, Mutić, Jelena, "Lead isotope ratios as tool for elucidation of chemical environment in a system of Macrolepiota procera (Scop.) Singer - soil" in Environmental Science and Pollution Research (2020),
https://doi.org/10.1007/s11356-020-07947-6 . .
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