TY  - DATA
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor
AU  - Ortner, Astrid
AU  - Zavašnik, Janez
AU  - Kalcher, Kurt
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3036
PB  - Springer, New York
T2  - Food Analytical Methods
T1  - Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3036
ER  - 

@misc{
author = "Mehmeti, Eda and Stanković, Dalibor and Ortner, Astrid and Zavašnik, Janez and Kalcher, Kurt",
year = "2017",
publisher = "Springer, New York",
journal = "Food Analytical Methods",
title = "Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3036"
}

Mehmeti, E., Stanković, D., Ortner, A., Zavašnik, J.,& Kalcher, K.. (2017). Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x. in Food Analytical Methods
Springer, New York..
https://hdl.handle.net/21.15107/rcub_cherry_3036

Mehmeti E, Stanković D, Ortner A, Zavašnik J, Kalcher K. Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x. in Food Analytical Methods. 2017;.
https://hdl.handle.net/21.15107/rcub_cherry_3036 .

Mehmeti, Eda, Stanković, Dalibor, Ortner, Astrid, Zavašnik, Janez, Kalcher, Kurt, "Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x" in Food Analytical Methods (2017),
https://hdl.handle.net/21.15107/rcub_cherry_3036 .

TY  - JOUR
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor
AU  - Ortner, Astrid
AU  - Zavašnik, Janez
AU  - Kalcher, Kurt
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2531
AB  - A boron-doped diamond electrode was used as an electrochemical sensor for the determination of phlorizin (aka phloridzin, phlorrhizin) using square wave voltammetry (SWV). Phlorizin (Phl) exhibited a well-defined oxidation peak at +0.9 V (versus Ag/AgCl electrode 3 M KCl) in solutions with a pH value of 6.0. Parameters such as pH value and scan rate were optimized for cyclic voltammetry as well as amplitude and frequency for SWV. The sensor gave excellent response with a wide linear dynamic range for concentrations of phlorizin from 3 to 100 mu M with a detection limit of 0.23 mu M and a good repeatability (+/- 0.9%, n = 7 measurements, c = 10 mu M). The effect of interferences by most common compounds was tested, and the method was successfully applied to the determination of the title compound in apple root extracts and urine samples with satisfactory recovery.
PB  - Springer, New York
T2  - Food Analytical Methods
T1  - Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode
VL  - 10
IS  - 11
SP  - 3747
EP  - 3752
DO  - 10.1007/s12161-017-0935-x
ER  - 

@article{
author = "Mehmeti, Eda and Stanković, Dalibor and Ortner, Astrid and Zavašnik, Janez and Kalcher, Kurt",
year = "2017",
abstract = "A boron-doped diamond electrode was used as an electrochemical sensor for the determination of phlorizin (aka phloridzin, phlorrhizin) using square wave voltammetry (SWV). Phlorizin (Phl) exhibited a well-defined oxidation peak at +0.9 V (versus Ag/AgCl electrode 3 M KCl) in solutions with a pH value of 6.0. Parameters such as pH value and scan rate were optimized for cyclic voltammetry as well as amplitude and frequency for SWV. The sensor gave excellent response with a wide linear dynamic range for concentrations of phlorizin from 3 to 100 mu M with a detection limit of 0.23 mu M and a good repeatability (+/- 0.9%, n = 7 measurements, c = 10 mu M). The effect of interferences by most common compounds was tested, and the method was successfully applied to the determination of the title compound in apple root extracts and urine samples with satisfactory recovery.",
publisher = "Springer, New York",
journal = "Food Analytical Methods",
title = "Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode",
volume = "10",
number = "11",
pages = "3747-3752",
doi = "10.1007/s12161-017-0935-x"
}

Mehmeti, E., Stanković, D., Ortner, A., Zavašnik, J.,& Kalcher, K.. (2017). Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. in Food Analytical Methods
Springer, New York., 10(11), 3747-3752.
https://doi.org/10.1007/s12161-017-0935-x

Mehmeti E, Stanković D, Ortner A, Zavašnik J, Kalcher K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. in Food Analytical Methods. 2017;10(11):3747-3752.
doi:10.1007/s12161-017-0935-x .

Mehmeti, Eda, Stanković, Dalibor, Ortner, Astrid, Zavašnik, Janez, Kalcher, Kurt, "Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode" in Food Analytical Methods, 10, no. 11 (2017):3747-3752,
https://doi.org/10.1007/s12161-017-0935-x . .

TY  - JOUR
AU  - Stojanović, Zorica S.
AU  - Mehmeti, Eda
AU  - Kalcher, Kurt
AU  - Guzsvany, Valeria
AU  - Stanković, Dalibor
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2302
AB  - In this work, a simple and rapid electrochemical method is presented for the voltammetric determination of histamine based on carbon paste electrodes bulk-modified with single-walled carbon nanotubes. As monitored in cyclic voltammetry histamine undergoes an irreversible electrochemical oxidation with a peak potential of ca. +1.25 V (vs. Ag/AgCl, 3 mol L-1 KCl) in phosphate buffer solution (PBS, 0.1 mol L-1, pH 6.0). At optimized differential pulse voltammetric parameters, the current response of histamine was linearly proportional to its concentration in the range from 4.5 to 720 mu mol L-1. A low limit of detection of 1.26 mu mol L-1 and a limit of quantification of 3.78 mu mol L-1 of histamine, as well as good reproducibility (RSD = 0.48-3.40 %) were obtained using the carbon paste electrode modified with single-walled carbon nanotubes. The proposed sensor was successfully applied to the determination of histamine in commercial beer and wine samples.
PB  - Springer, New York
T2  - Food Analytical Methods
T1  - SWCNT-modified carbon paste electrode as an electrochemical sensor for histamine determination in alcoholic beverages
VL  - 9
IS  - 10
SP  - 2701
EP  - 2710
DO  - 10.1007/s12161-016-0452-3
ER  - 

@article{
author = "Stojanović, Zorica S. and Mehmeti, Eda and Kalcher, Kurt and Guzsvany, Valeria and Stanković, Dalibor",
year = "2016",
abstract = "In this work, a simple and rapid electrochemical method is presented for the voltammetric determination of histamine based on carbon paste electrodes bulk-modified with single-walled carbon nanotubes. As monitored in cyclic voltammetry histamine undergoes an irreversible electrochemical oxidation with a peak potential of ca. +1.25 V (vs. Ag/AgCl, 3 mol L-1 KCl) in phosphate buffer solution (PBS, 0.1 mol L-1, pH 6.0). At optimized differential pulse voltammetric parameters, the current response of histamine was linearly proportional to its concentration in the range from 4.5 to 720 mu mol L-1. A low limit of detection of 1.26 mu mol L-1 and a limit of quantification of 3.78 mu mol L-1 of histamine, as well as good reproducibility (RSD = 0.48-3.40 %) were obtained using the carbon paste electrode modified with single-walled carbon nanotubes. The proposed sensor was successfully applied to the determination of histamine in commercial beer and wine samples.",
publisher = "Springer, New York",
journal = "Food Analytical Methods",
title = "SWCNT-modified carbon paste electrode as an electrochemical sensor for histamine determination in alcoholic beverages",
volume = "9",
number = "10",
pages = "2701-2710",
doi = "10.1007/s12161-016-0452-3"
}

Stojanović, Z. S., Mehmeti, E., Kalcher, K., Guzsvany, V.,& Stanković, D.. (2016). SWCNT-modified carbon paste electrode as an electrochemical sensor for histamine determination in alcoholic beverages. in Food Analytical Methods
Springer, New York., 9(10), 2701-2710.
https://doi.org/10.1007/s12161-016-0452-3

Stojanović ZS, Mehmeti E, Kalcher K, Guzsvany V, Stanković D. SWCNT-modified carbon paste electrode as an electrochemical sensor for histamine determination in alcoholic beverages. in Food Analytical Methods. 2016;9(10):2701-2710.
doi:10.1007/s12161-016-0452-3 .

Stojanović, Zorica S., Mehmeti, Eda, Kalcher, Kurt, Guzsvany, Valeria, Stanković, Dalibor, "SWCNT-modified carbon paste electrode as an electrochemical sensor for histamine determination in alcoholic beverages" in Food Analytical Methods, 9, no. 10 (2016):2701-2710,
https://doi.org/10.1007/s12161-016-0452-3 . .

TY  - JOUR
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor
AU  - Hajrizi, Ahmet
AU  - Kalcher, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3653
AB  - In this work new designed, highly sensitive electrochemical method is developed for the determination of nitrites in tap water using glassy carbon electrode modified with graphene nanoribbons (GNs/GCE). Graphene nanoribbons (GNs) have been newly synthetized and aligned to the surface of glassy carbon electrode (GCE) and exhibited excellent electrocatalytic activity for nitrite oxidation with a very high peak currents. Studies about electrochemical behavior and optimization of the most important experimental conditions were done using cyclic voltammetry (CV), while quantitative studies were done with amperometric detection. Nitrite provides a well-defined, oxidation peak at +0.9 V (vs. Ag/AgCI, 3.0 M KCI) in Britton-Robinson buffer solution (BRBS) at pH 3. The influence of most possible interferent ions has been examined and was found to be negligible. Under optimized experimental conditions in BRBS at pH 3 linear calibration curves were obtained in the range from 0.5 to 105 mu M with the detection limit of 0.22 mu M. Reproducibility of ten replicate measurements of 1 M of nitrite was estimated to be 1.9%. Proposed method and constructed sensor is successfully applied for the determination of nitrite present in tap water samples without any pretreatment. This developed method represents inexpensive analytical alternative approach compared to other analytical methods. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Talanta
T1  - The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination
VL  - 159
SP  - 34
EP  - 39
DO  - 10.1016/j.talanta.2016.05.079
ER  - 

@article{
author = "Mehmeti, Eda and Stanković, Dalibor and Hajrizi, Ahmet and Kalcher, Kurt",
year = "2016",
abstract = "In this work new designed, highly sensitive electrochemical method is developed for the determination of nitrites in tap water using glassy carbon electrode modified with graphene nanoribbons (GNs/GCE). Graphene nanoribbons (GNs) have been newly synthetized and aligned to the surface of glassy carbon electrode (GCE) and exhibited excellent electrocatalytic activity for nitrite oxidation with a very high peak currents. Studies about electrochemical behavior and optimization of the most important experimental conditions were done using cyclic voltammetry (CV), while quantitative studies were done with amperometric detection. Nitrite provides a well-defined, oxidation peak at +0.9 V (vs. Ag/AgCI, 3.0 M KCI) in Britton-Robinson buffer solution (BRBS) at pH 3. The influence of most possible interferent ions has been examined and was found to be negligible. Under optimized experimental conditions in BRBS at pH 3 linear calibration curves were obtained in the range from 0.5 to 105 mu M with the detection limit of 0.22 mu M. Reproducibility of ten replicate measurements of 1 M of nitrite was estimated to be 1.9%. Proposed method and constructed sensor is successfully applied for the determination of nitrite present in tap water samples without any pretreatment. This developed method represents inexpensive analytical alternative approach compared to other analytical methods. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Talanta",
title = "The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination",
volume = "159",
pages = "34-39",
doi = "10.1016/j.talanta.2016.05.079"
}

Mehmeti, E., Stanković, D., Hajrizi, A.,& Kalcher, K.. (2016). The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination. in Talanta
Elsevier Science Bv, Amsterdam., 159, 34-39.
https://doi.org/10.1016/j.talanta.2016.05.079

Mehmeti E, Stanković D, Hajrizi A, Kalcher K. The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination. in Talanta. 2016;159:34-39.
doi:10.1016/j.talanta.2016.05.079 .

Mehmeti, Eda, Stanković, Dalibor, Hajrizi, Ahmet, Kalcher, Kurt, "The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination" in Talanta, 159 (2016):34-39,
https://doi.org/10.1016/j.talanta.2016.05.079 . .

TY  - JOUR
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor
AU  - Chaiyo, Sudkate
AU  - Šovrc, Ľubomír
AU  - Kalcher, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1926
AB  - A carbon paste electrode bulk was modified with MnO2 and investigated for use as an electrochemical sensor for riboflavin (vitamin B-2) using differential pulse voltammetry (DPV). Riboflavin displays a well expressed oxidation peak at -0.15 V (versus Ag/AgCl) in solutions with a pH value of 2. Effects of pH value, pulse amplitude and pulse time were optimized by employing DPV. The signals obtained are linearly related to the concentrations of riboflavin in the range from 0.02 to 9 mu M. Other features include a 15 nM detection limit, and good reproducibility (+/- 3 %) and repeatability (+/- 2 %). Interferences by common compounds were tested, and the method was successfully applied to the determination of riboflavin in pharmaceutical formulations where is gave recoveries in the range from 95 to 97 %.
PB  - Springer Wien, Wien
T2  - Microchimica Acta
T1  - Manganese dioxide-modified carbon paste electrode for voltammetric determination of riboflavin
VL  - 183
IS  - 5
SP  - 1619
EP  - 1624
DO  - 10.1007/s00604-016-1789-4
ER  - 

@article{
author = "Mehmeti, Eda and Stanković, Dalibor and Chaiyo, Sudkate and Šovrc, Ľubomír and Kalcher, Kurt",
year = "2016",
abstract = "A carbon paste electrode bulk was modified with MnO2 and investigated for use as an electrochemical sensor for riboflavin (vitamin B-2) using differential pulse voltammetry (DPV). Riboflavin displays a well expressed oxidation peak at -0.15 V (versus Ag/AgCl) in solutions with a pH value of 2. Effects of pH value, pulse amplitude and pulse time were optimized by employing DPV. The signals obtained are linearly related to the concentrations of riboflavin in the range from 0.02 to 9 mu M. Other features include a 15 nM detection limit, and good reproducibility (+/- 3 %) and repeatability (+/- 2 %). Interferences by common compounds were tested, and the method was successfully applied to the determination of riboflavin in pharmaceutical formulations where is gave recoveries in the range from 95 to 97 %.",
publisher = "Springer Wien, Wien",
journal = "Microchimica Acta",
title = "Manganese dioxide-modified carbon paste electrode for voltammetric determination of riboflavin",
volume = "183",
number = "5",
pages = "1619-1624",
doi = "10.1007/s00604-016-1789-4"
}

Mehmeti, E., Stanković, D., Chaiyo, S., Šovrc, Ľ.,& Kalcher, K.. (2016). Manganese dioxide-modified carbon paste electrode for voltammetric determination of riboflavin. in Microchimica Acta
Springer Wien, Wien., 183(5), 1619-1624.
https://doi.org/10.1007/s00604-016-1789-4

Mehmeti E, Stanković D, Chaiyo S, Šovrc Ľ, Kalcher K. Manganese dioxide-modified carbon paste electrode for voltammetric determination of riboflavin. in Microchimica Acta. 2016;183(5):1619-1624.
doi:10.1007/s00604-016-1789-4 .

Mehmeti, Eda, Stanković, Dalibor, Chaiyo, Sudkate, Šovrc, Ľubomír, Kalcher, Kurt, "Manganese dioxide-modified carbon paste electrode for voltammetric determination of riboflavin" in Microchimica Acta, 183, no. 5 (2016):1619-1624,
https://doi.org/10.1007/s00604-016-1789-4 . .

TY  - JOUR
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor
AU  - Hajrizi, Ahmet
AU  - Kalcher, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2292
AB  - In this work new designed, highly sensitive electrochemical method is developed for the determination of nitrites in tap water using glassy carbon electrode modified with graphene nanoribbons (GNs/GCE). Graphene nanoribbons (GNs) have been newly synthetized and aligned to the surface of glassy carbon electrode (GCE) and exhibited excellent electrocatalytic activity for nitrite oxidation with a very high peak currents. Studies about electrochemical behavior and optimization of the most important experimental conditions were done using cyclic voltammetry (CV), while quantitative studies were done with amperometric detection. Nitrite provides a well-defined, oxidation peak at +0.9 V (vs. Ag/AgCI, 3.0 M KCI) in Britton-Robinson buffer solution (BRBS) at pH 3. The influence of most possible interferent ions has been examined and was found to be negligible. Under optimized experimental conditions in BRBS at pH 3 linear calibration curves were obtained in the range from 0.5 to 105 mu M with the detection limit of 0.22 mu M. Reproducibility of ten replicate measurements of 1 M of nitrite was estimated to be 1.9%. Proposed method and constructed sensor is successfully applied for the determination of nitrite present in tap water samples without any pretreatment. This developed method represents inexpensive analytical alternative approach compared to other analytical methods. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - Talanta
T1  - The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination
VL  - 159
SP  - 34
EP  - 39
DO  - 10.1016/j.talanta.2016.05.079
ER  - 

@article{
author = "Mehmeti, Eda and Stanković, Dalibor and Hajrizi, Ahmet and Kalcher, Kurt",
year = "2016",
abstract = "In this work new designed, highly sensitive electrochemical method is developed for the determination of nitrites in tap water using glassy carbon electrode modified with graphene nanoribbons (GNs/GCE). Graphene nanoribbons (GNs) have been newly synthetized and aligned to the surface of glassy carbon electrode (GCE) and exhibited excellent electrocatalytic activity for nitrite oxidation with a very high peak currents. Studies about electrochemical behavior and optimization of the most important experimental conditions were done using cyclic voltammetry (CV), while quantitative studies were done with amperometric detection. Nitrite provides a well-defined, oxidation peak at +0.9 V (vs. Ag/AgCI, 3.0 M KCI) in Britton-Robinson buffer solution (BRBS) at pH 3. The influence of most possible interferent ions has been examined and was found to be negligible. Under optimized experimental conditions in BRBS at pH 3 linear calibration curves were obtained in the range from 0.5 to 105 mu M with the detection limit of 0.22 mu M. Reproducibility of ten replicate measurements of 1 M of nitrite was estimated to be 1.9%. Proposed method and constructed sensor is successfully applied for the determination of nitrite present in tap water samples without any pretreatment. This developed method represents inexpensive analytical alternative approach compared to other analytical methods. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Talanta",
title = "The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination",
volume = "159",
pages = "34-39",
doi = "10.1016/j.talanta.2016.05.079"
}

Mehmeti, E., Stanković, D., Hajrizi, A.,& Kalcher, K.. (2016). The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination. in Talanta
Elsevier Science Bv, Amsterdam., 159, 34-39.
https://doi.org/10.1016/j.talanta.2016.05.079

Mehmeti E, Stanković D, Hajrizi A, Kalcher K. The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination. in Talanta. 2016;159:34-39.
doi:10.1016/j.talanta.2016.05.079 .

Mehmeti, Eda, Stanković, Dalibor, Hajrizi, Ahmet, Kalcher, Kurt, "The use of graphene nanoribbons as efficient electrochemical sensing material for nitrite determination" in Talanta, 159 (2016):34-39,
https://doi.org/10.1016/j.talanta.2016.05.079 . .