TY  - JOUR
AU  - Kalijadis, Ana
AU  - Đorđević, Jelena S.
AU  - Papp, Zsigmond
AU  - Jokić, Bojan M.
AU  - Spasojević, Vuk D.
AU  - Babić, Biljana M.
AU  - Trtić-Petrović, Tatjana M.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5813
AB  - In this work, a new carbon paste electrode, prepared from nitrogen-doped hydrothermal carbon (CHTCN) was applied for the electrochemical detection and determination of carbendazim fungicide. CHTCN samples with the nominal nitrogen content 0.05-0.5 wt. % in glucose precursor were prepared by simple, low-cost synthesis with the accompanying carbonization to 1273 K. The presence of nitrogen in CHTCN samples was confirmed by elemental analysis. Characterization of CHTCN as material for carbon paste electrode was achieved by cyclic voltammetry measurement of the Fe(CN)(6)(3-/4-) redox couple. The results showed that best electrochemical response was obtained from the sample with a nominal nitrogen concentration of 0.1 wt. % and with tricresyl phosphate as a binder. During the development of a differential pulse stripping voltammetric method for carbendazim determination applying new electrode, the following experimental parameters were studied: the sort and amount of binding liquid, the effect of pH, accumulation potential and accumulation time. Under optimal conditions, the electrode offered linearity in the wide concentration range from 25 to 490 ng cm(-3) and an estimated detection limit of 1.21 ng cm(-3). Moreover, the electrode showed good stability, high selectivity and satisfactory anti-interference ability. Finally, the developed method was successfully applied for the determination of carbendazim traces in spiked tap and river water samples.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim
EP  - 1272
IS  - 11
SP  - 1259
VL  - 82
DO  - 10.2298/JSC161228053K
ER  - 

@article{
author = "Kalijadis, Ana and Đorđević, Jelena S. and Papp, Zsigmond and Jokić, Bojan M. and Spasojević, Vuk D. and Babić, Biljana M. and Trtić-Petrović, Tatjana M.",
year = "2017",
abstract = "In this work, a new carbon paste electrode, prepared from nitrogen-doped hydrothermal carbon (CHTCN) was applied for the electrochemical detection and determination of carbendazim fungicide. CHTCN samples with the nominal nitrogen content 0.05-0.5 wt. % in glucose precursor were prepared by simple, low-cost synthesis with the accompanying carbonization to 1273 K. The presence of nitrogen in CHTCN samples was confirmed by elemental analysis. Characterization of CHTCN as material for carbon paste electrode was achieved by cyclic voltammetry measurement of the Fe(CN)(6)(3-/4-) redox couple. The results showed that best electrochemical response was obtained from the sample with a nominal nitrogen concentration of 0.1 wt. % and with tricresyl phosphate as a binder. During the development of a differential pulse stripping voltammetric method for carbendazim determination applying new electrode, the following experimental parameters were studied: the sort and amount of binding liquid, the effect of pH, accumulation potential and accumulation time. Under optimal conditions, the electrode offered linearity in the wide concentration range from 25 to 490 ng cm(-3) and an estimated detection limit of 1.21 ng cm(-3). Moreover, the electrode showed good stability, high selectivity and satisfactory anti-interference ability. Finally, the developed method was successfully applied for the determination of carbendazim traces in spiked tap and river water samples.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim",
pages = "1272-1259",
number = "11",
volume = "82",
doi = "10.2298/JSC161228053K"
}

Kalijadis, A., Đorđević, J. S., Papp, Z., Jokić, B. M., Spasojević, V. D., Babić, B. M.,& Trtić-Petrović, T. M.. (2017). A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 82(11), 1259-1272.
https://doi.org/10.2298/JSC161228053K

Kalijadis A, Đorđević JS, Papp Z, Jokić BM, Spasojević VD, Babić BM, Trtić-Petrović TM. A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim. in Journal of the Serbian Chemical Society. 2017;82(11):1259-1272.
doi:10.2298/JSC161228053K .

Kalijadis, Ana, Đorđević, Jelena S., Papp, Zsigmond, Jokić, Bojan M., Spasojević, Vuk D., Babić, Biljana M., Trtić-Petrović, Tatjana M., "A novel carbon paste electrode based on nitrogen-doped hydrothermal carbon for electrochemical determination of carbendazim" in Journal of the Serbian Chemical Society, 82, no. 11 (2017):1259-1272,
https://doi.org/10.2298/JSC161228053K . .

TY  - JOUR
AU  - Momčilović, Milan Z.
AU  - Ranđelović, Marjan S.
AU  - Purenović, Milovan M.
AU  - Đorđević, Jelena S.
AU  - Onjia, Antonije
AU  - Matović, Branko
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3447
AB  - Pollution control and water purification are the main concerns associated with hazardous component eliminations from wastewaters which have inspired the research, among the others, on various clay minerals as useful adsorbents. The aim of this study was to examine morphological, structural, adsorption, and electrochemical characteristics of serpentinite in order to check its potential for removal of cadmium and textile dyes from synthetic waters. SEM technique has provided a detailed insight into the surface morphology of serpentinite indicating irregularly shaped particles and lamellar aggregates which are characteristic of lizardite mineral. Crystal phases detected in composition of serpentinite by using XRD technique are lizardite and tiny amount of periclase. Serpentinite adsorption characteristics were investigated towards Cd2+ and anionic textile dyes (Procion red MX-5B, Procion orange and Ramazol black) in aqueous solutions. The main goal of the study was the reliable removal of hazardous Cd2+ at low initial concentrations (up to 200 mu g/dm(3)). Textile dyes were taken as the models of anionic organic pollutants in water. All the adsorption experiments were carried out in batch conditions by varying initial parameters such as concentration of pollutant, contact time, mass of adsorbent and pH. Based on the obtained results, serpentinite has proven to be efficient adsorbent with removal efficiency over 98% for the selected pollutants. Native serpentinite was further modified in order to obtain forsterite. Electrochemical characteristics of serpentinite and forsterite were examined by using cyclic voltammetry of solution of 0.1 M H2SO4 as acidic supporting electrolyte and K-4[Fe(CN)(6)] which was chosen as a redox model compound. Due to its specific structure, surface groups, morphology, and non-stoichiometric composition, serpentinite and forsterite exhibited prominent electrocatalytic activity.
PB  - Elsevier Science Bv, Amsterdam
T2  - Separation and Purification Technology
T1  - Morpho-structural, adsorption and electrochemical characteristics of serpentinite
EP  - 78
SP  - 72
VL  - 163
DO  - 10.1016/j.seppur.2016.02.042
ER  - 

@article{
author = "Momčilović, Milan Z. and Ranđelović, Marjan S. and Purenović, Milovan M. and Đorđević, Jelena S. and Onjia, Antonije and Matović, Branko",
year = "2016",
abstract = "Pollution control and water purification are the main concerns associated with hazardous component eliminations from wastewaters which have inspired the research, among the others, on various clay minerals as useful adsorbents. The aim of this study was to examine morphological, structural, adsorption, and electrochemical characteristics of serpentinite in order to check its potential for removal of cadmium and textile dyes from synthetic waters. SEM technique has provided a detailed insight into the surface morphology of serpentinite indicating irregularly shaped particles and lamellar aggregates which are characteristic of lizardite mineral. Crystal phases detected in composition of serpentinite by using XRD technique are lizardite and tiny amount of periclase. Serpentinite adsorption characteristics were investigated towards Cd2+ and anionic textile dyes (Procion red MX-5B, Procion orange and Ramazol black) in aqueous solutions. The main goal of the study was the reliable removal of hazardous Cd2+ at low initial concentrations (up to 200 mu g/dm(3)). Textile dyes were taken as the models of anionic organic pollutants in water. All the adsorption experiments were carried out in batch conditions by varying initial parameters such as concentration of pollutant, contact time, mass of adsorbent and pH. Based on the obtained results, serpentinite has proven to be efficient adsorbent with removal efficiency over 98% for the selected pollutants. Native serpentinite was further modified in order to obtain forsterite. Electrochemical characteristics of serpentinite and forsterite were examined by using cyclic voltammetry of solution of 0.1 M H2SO4 as acidic supporting electrolyte and K-4[Fe(CN)(6)] which was chosen as a redox model compound. Due to its specific structure, surface groups, morphology, and non-stoichiometric composition, serpentinite and forsterite exhibited prominent electrocatalytic activity.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Separation and Purification Technology",
title = "Morpho-structural, adsorption and electrochemical characteristics of serpentinite",
pages = "78-72",
volume = "163",
doi = "10.1016/j.seppur.2016.02.042"
}

Momčilović, M. Z., Ranđelović, M. S., Purenović, M. M., Đorđević, J. S., Onjia, A.,& Matović, B.. (2016). Morpho-structural, adsorption and electrochemical characteristics of serpentinite. in Separation and Purification Technology
Elsevier Science Bv, Amsterdam., 163, 72-78.
https://doi.org/10.1016/j.seppur.2016.02.042

Momčilović MZ, Ranđelović MS, Purenović MM, Đorđević JS, Onjia A, Matović B. Morpho-structural, adsorption and electrochemical characteristics of serpentinite. in Separation and Purification Technology. 2016;163:72-78.
doi:10.1016/j.seppur.2016.02.042 .

Momčilović, Milan Z., Ranđelović, Marjan S., Purenović, Milovan M., Đorđević, Jelena S., Onjia, Antonije, Matović, Branko, "Morpho-structural, adsorption and electrochemical characteristics of serpentinite" in Separation and Purification Technology, 163 (2016):72-78,
https://doi.org/10.1016/j.seppur.2016.02.042 . .

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Đorđević, Jelena S.
AU  - Trtić-Petrović, Tatjana M.
AU  - Vukčević, Marija
AU  - Popović, Maja
AU  - Maksimović, Vesna
AU  - Rakočević, Zlatko Lj.
AU  - Laušević, Zoran
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3074
AB  - Boron doped hydrothermal carbon microspheres were synthesized by introducing boric acid into glucose precursor solution to obtain boron concentration from 0.1 to 1 wt. %. Following hydrothermal treatment, samples were thermally treated to 1000 degrees C. For obtained samples structural and surface characterization were performed. Characterization of obtained samples as material for carbon paste electrode was achieved by measurement of the Fe (CN)(6)(3-/4-) redox couple and linuron determination. Catalytic effect of boric acid on hydrothermal reaction induced enlargement of particle size for boron doped samples. Significant reduction of specific surface area for samples with highest boron concentration was observed. Boron was substitutionally incorporated in the structure of doped samples and incorporation up to 0.6 wt. % in precursor solution generates structure ordering, which induces a reduction of surface active sites for oxygen adsorption in a greater extent. It was found that modified structural and surface characteristics are responsible for good electron transfer property of carbon paste electrode based on doped samples with nominal boron concentration range from 0.2 to 0.6 wt. %. However, it has been shown that sample with nominal boron concentration of 0.2 wt. % proved to be most promising candidate as a material for carbon paste electrode.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Carbon
T1  - Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode
EP  - 50
SP  - 42
VL  - 95
DO  - 10.1016/j.carbon.2015.08.016
ER  - 

@article{
author = "Kalijadis, Ana and Đorđević, Jelena S. and Trtić-Petrović, Tatjana M. and Vukčević, Marija and Popović, Maja and Maksimović, Vesna and Rakočević, Zlatko Lj. and Laušević, Zoran",
year = "2015",
abstract = "Boron doped hydrothermal carbon microspheres were synthesized by introducing boric acid into glucose precursor solution to obtain boron concentration from 0.1 to 1 wt. %. Following hydrothermal treatment, samples were thermally treated to 1000 degrees C. For obtained samples structural and surface characterization were performed. Characterization of obtained samples as material for carbon paste electrode was achieved by measurement of the Fe (CN)(6)(3-/4-) redox couple and linuron determination. Catalytic effect of boric acid on hydrothermal reaction induced enlargement of particle size for boron doped samples. Significant reduction of specific surface area for samples with highest boron concentration was observed. Boron was substitutionally incorporated in the structure of doped samples and incorporation up to 0.6 wt. % in precursor solution generates structure ordering, which induces a reduction of surface active sites for oxygen adsorption in a greater extent. It was found that modified structural and surface characteristics are responsible for good electron transfer property of carbon paste electrode based on doped samples with nominal boron concentration range from 0.2 to 0.6 wt. %. However, it has been shown that sample with nominal boron concentration of 0.2 wt. % proved to be most promising candidate as a material for carbon paste electrode.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Carbon",
title = "Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode",
pages = "50-42",
volume = "95",
doi = "10.1016/j.carbon.2015.08.016"
}

Kalijadis, A., Đorđević, J. S., Trtić-Petrović, T. M., Vukčević, M., Popović, M., Maksimović, V., Rakočević, Z. Lj.,& Laušević, Z.. (2015). Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode. in Carbon
Pergamon-Elsevier Science Ltd, Oxford., 95, 42-50.
https://doi.org/10.1016/j.carbon.2015.08.016

Kalijadis A, Đorđević JS, Trtić-Petrović TM, Vukčević M, Popović M, Maksimović V, Rakočević ZL, Laušević Z. Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode. in Carbon. 2015;95:42-50.
doi:10.1016/j.carbon.2015.08.016 .

Kalijadis, Ana, Đorđević, Jelena S., Trtić-Petrović, Tatjana M., Vukčević, Marija, Popović, Maja, Maksimović, Vesna, Rakočević, Zlatko Lj., Laušević, Zoran, "Preparation of boron-doped hydrothermal carbon from glucose for carbon paste electrode" in Carbon, 95 (2015):42-50,
https://doi.org/10.1016/j.carbon.2015.08.016 . .

TY  - JOUR
AU  - Trtić-Petrović, Tatjana M.
AU  - Đorđević, Jelena S.
AU  - Dujaković, Nikolina
AU  - Kumrić, Ksenija
AU  - Vasiljević, Tatjana
AU  - Laušević, Mila
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5590
AB  - An optimised extraction and cleanup method for the analysis of pesticide in natural water samples is presented. Sixteen pesticides of different polarity and from the different chemical classes (organophosphates, triazines, benzimidazoles, carbamates, carbamides, neonicotinoides, methylureas, phenylureas and benzohydrazides), most frequently used in Serbia, were selected for the analysis. Liquid-phase microextraction in a single hollow fibre (HF-LPME) has been applied for sample preparation. The concentrations of pesticides were determined using HPLC-MS/MS method with electrospray ionisation. The extraction behaviour and selection of the experimental conditions was predicted based on log D and pK (a) values of targeted pesticides, which were calculated applying the computer software ACD/Labs PhysChem Suite v12. The influence of the donor pH and concentration of pesticides, organic phase composition as well as the extraction time on the extraction efficiency was investigated. Optimum extraction conditions were evaluated with respect to the investigated parameters of the extraction. The extraction method was validated for 10 out of 16 studied pesticides. Linear range of the pesticides was 0.1-5 A mu g L(-1) with the correlation coefficient from 0.991 to 0.9998, and the relative standard deviation for three standard measurements was between 0.2 and 11.8%. The limits of detections ranged from 0.026 to 0.237 A mu g L(-1) and the limits of quantifications from 0.094 to 0.793 A mu g L(-1). The optimised two-phase HF-LPME method was successfully applied for determination of moderately polar as well low-polar pesticides in the environmental water samples.
T2  - Analytical and Bioanalytical Chemistry
T1  - Determination of selected pesticides in environmental water by employing liquid-phase microextraction and liquid chromatography-tandem mass spectrometry
EP  - 2243
IS  - 6
SP  - 2233
VL  - 397
DO  - 10.1007/s00216-010-3725-5
ER  - 

@article{
author = "Trtić-Petrović, Tatjana M. and Đorđević, Jelena S. and Dujaković, Nikolina and Kumrić, Ksenija and Vasiljević, Tatjana and Laušević, Mila",
year = "2010",
abstract = "An optimised extraction and cleanup method for the analysis of pesticide in natural water samples is presented. Sixteen pesticides of different polarity and from the different chemical classes (organophosphates, triazines, benzimidazoles, carbamates, carbamides, neonicotinoides, methylureas, phenylureas and benzohydrazides), most frequently used in Serbia, were selected for the analysis. Liquid-phase microextraction in a single hollow fibre (HF-LPME) has been applied for sample preparation. The concentrations of pesticides were determined using HPLC-MS/MS method with electrospray ionisation. The extraction behaviour and selection of the experimental conditions was predicted based on log D and pK (a) values of targeted pesticides, which were calculated applying the computer software ACD/Labs PhysChem Suite v12. The influence of the donor pH and concentration of pesticides, organic phase composition as well as the extraction time on the extraction efficiency was investigated. Optimum extraction conditions were evaluated with respect to the investigated parameters of the extraction. The extraction method was validated for 10 out of 16 studied pesticides. Linear range of the pesticides was 0.1-5 A mu g L(-1) with the correlation coefficient from 0.991 to 0.9998, and the relative standard deviation for three standard measurements was between 0.2 and 11.8%. The limits of detections ranged from 0.026 to 0.237 A mu g L(-1) and the limits of quantifications from 0.094 to 0.793 A mu g L(-1). The optimised two-phase HF-LPME method was successfully applied for determination of moderately polar as well low-polar pesticides in the environmental water samples.",
journal = "Analytical and Bioanalytical Chemistry",
title = "Determination of selected pesticides in environmental water by employing liquid-phase microextraction and liquid chromatography-tandem mass spectrometry",
pages = "2243-2233",
number = "6",
volume = "397",
doi = "10.1007/s00216-010-3725-5"
}

Trtić-Petrović, T. M., Đorđević, J. S., Dujaković, N., Kumrić, K., Vasiljević, T.,& Laušević, M.. (2010). Determination of selected pesticides in environmental water by employing liquid-phase microextraction and liquid chromatography-tandem mass spectrometry. in Analytical and Bioanalytical Chemistry, 397(6), 2233-2243.
https://doi.org/10.1007/s00216-010-3725-5

Trtić-Petrović TM, Đorđević JS, Dujaković N, Kumrić K, Vasiljević T, Laušević M. Determination of selected pesticides in environmental water by employing liquid-phase microextraction and liquid chromatography-tandem mass spectrometry. in Analytical and Bioanalytical Chemistry. 2010;397(6):2233-2243.
doi:10.1007/s00216-010-3725-5 .

Trtić-Petrović, Tatjana M., Đorđević, Jelena S., Dujaković, Nikolina, Kumrić, Ksenija, Vasiljević, Tatjana, Laušević, Mila, "Determination of selected pesticides in environmental water by employing liquid-phase microextraction and liquid chromatography-tandem mass spectrometry" in Analytical and Bioanalytical Chemistry, 397, no. 6 (2010):2233-2243,
https://doi.org/10.1007/s00216-010-3725-5 . .