Samphao, Anchalee

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  • Samphao, Anchalee (4)

Author's Bibliography

A highly sensitive fenobucarb electrochemical sensor based on graphene nanoribbons-ionic liquid-cobalt phthalocyanine composites modified on screen-printed carbon electrode coupled with a flow injection analysis

Kunpatee, Kanjana; Chamsai, Phuktra; Mehmeti, Eda; Stanković, Dalibor M.; Ortner, Astrid; Kalcher, Kurt; Samphao, Anchalee

(2019)

TY  - JOUR
AU  - Kunpatee, Kanjana
AU  - Chamsai, Phuktra
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor M.
AU  - Ortner, Astrid
AU  - Kalcher, Kurt
AU  - Samphao, Anchalee
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8667
AB  - A sensitive and rapid method for the determination of fenobucarb by using screen-printed carbon electrode modified with graphene nanoribbons - ionic liquid - cobalt phthalocyanine (GNRs-IL-CoPc/SPCE) composites based on flow injection analysis (FIA) was developed and applied to vegetable samples. The prepared GNRs-IL-CoPc composite was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and atomic force microscopy (AFM). Moreover, cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS) were used to characterize the electrochemical behavior of the modified SPCE. The amperometric current responses were obtained from the oxidation of 2-sec-butyl-phenol, which is the product of alkaline hydrolysis of fenobucarb. The optimization of chemical variables and instrumental analysis such as composite amounts, pH, applied potential, and flow rate were carried out to obtain the best measurement. Under the optimal conditions, the proposed sensor yielded sensitivity of 0.0884 M/A·cm2, a wide linear range for detection of fenobucarb from 0.025 to 110 μM with a low detection, and quantification limits of 0.0089 μM and 0.0252 μM, respectively. Additionally, the developed sensor showed good repeatability (RSD = 3.5%, n = 10 measurements) and good reproducibility (RSD = 3.9%, n = 5 sensors). The proposed method could be effectively applied for the determination of fenobucarb in vegetable samples.
T2  - Journal of Electroanalytical Chemistry
T1  - A highly sensitive fenobucarb electrochemical sensor based on graphene nanoribbons-ionic liquid-cobalt phthalocyanine composites modified on screen-printed carbon electrode coupled with a flow injection analysis
VL  - 855
SP  - 113630
DO  - 10.1016/j.jelechem.2019.113630
ER  - 
@article{
author = "Kunpatee, Kanjana and Chamsai, Phuktra and Mehmeti, Eda and Stanković, Dalibor M. and Ortner, Astrid and Kalcher, Kurt and Samphao, Anchalee",
year = "2019",
abstract = "A sensitive and rapid method for the determination of fenobucarb by using screen-printed carbon electrode modified with graphene nanoribbons - ionic liquid - cobalt phthalocyanine (GNRs-IL-CoPc/SPCE) composites based on flow injection analysis (FIA) was developed and applied to vegetable samples. The prepared GNRs-IL-CoPc composite was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and atomic force microscopy (AFM). Moreover, cyclic voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS) were used to characterize the electrochemical behavior of the modified SPCE. The amperometric current responses were obtained from the oxidation of 2-sec-butyl-phenol, which is the product of alkaline hydrolysis of fenobucarb. The optimization of chemical variables and instrumental analysis such as composite amounts, pH, applied potential, and flow rate were carried out to obtain the best measurement. Under the optimal conditions, the proposed sensor yielded sensitivity of 0.0884 M/A·cm2, a wide linear range for detection of fenobucarb from 0.025 to 110 μM with a low detection, and quantification limits of 0.0089 μM and 0.0252 μM, respectively. Additionally, the developed sensor showed good repeatability (RSD = 3.5%, n = 10 measurements) and good reproducibility (RSD = 3.9%, n = 5 sensors). The proposed method could be effectively applied for the determination of fenobucarb in vegetable samples.",
journal = "Journal of Electroanalytical Chemistry",
title = "A highly sensitive fenobucarb electrochemical sensor based on graphene nanoribbons-ionic liquid-cobalt phthalocyanine composites modified on screen-printed carbon electrode coupled with a flow injection analysis",
volume = "855",
pages = "113630",
doi = "10.1016/j.jelechem.2019.113630"
}
Kunpatee, K., Chamsai, P., Mehmeti, E., Stanković, D. M., Ortner, A., Kalcher, K.,& Samphao, A.. (2019). A highly sensitive fenobucarb electrochemical sensor based on graphene nanoribbons-ionic liquid-cobalt phthalocyanine composites modified on screen-printed carbon electrode coupled with a flow injection analysis. in Journal of Electroanalytical Chemistry, 855, 113630.
https://doi.org/10.1016/j.jelechem.2019.113630
Kunpatee K, Chamsai P, Mehmeti E, Stanković DM, Ortner A, Kalcher K, Samphao A. A highly sensitive fenobucarb electrochemical sensor based on graphene nanoribbons-ionic liquid-cobalt phthalocyanine composites modified on screen-printed carbon electrode coupled with a flow injection analysis. in Journal of Electroanalytical Chemistry. 2019;855:113630.
doi:10.1016/j.jelechem.2019.113630 .
Kunpatee, Kanjana, Chamsai, Phuktra, Mehmeti, Eda, Stanković, Dalibor M., Ortner, Astrid, Kalcher, Kurt, Samphao, Anchalee, "A highly sensitive fenobucarb electrochemical sensor based on graphene nanoribbons-ionic liquid-cobalt phthalocyanine composites modified on screen-printed carbon electrode coupled with a flow injection analysis" in Journal of Electroanalytical Chemistry, 855 (2019):113630,
https://doi.org/10.1016/j.jelechem.2019.113630 . .
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A direct and sensitive electrochemical sensing platform based on ionic liquid functionalized graphene nanoplatelets for the detection of bisphenol A

Butmee, Preeyanut; Tumcharern, Gamolwan; Saejueng, Pranorm; Stanković, Dalibor M.; Ortner, Astrid; Jitcharoen, Juthamas; Kalcher, Kurt; Samphao, Anchalee

(2018)

TY  - JOUR
AU  - Butmee, Preeyanut
AU  - Tumcharern, Gamolwan
AU  - Saejueng, Pranorm
AU  - Stanković, Dalibor M.
AU  - Ortner, Astrid
AU  - Jitcharoen, Juthamas
AU  - Kalcher, Kurt
AU  - Samphao, Anchalee
PY  - 2018
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7989
AB  - A simple electrochemical sensor for bisphenol A (BPA) was developed based on a composite of graphene nanoplatelets (GNPs) and 1-butyl-2, 3-dimethylimidazolium tetrafluoroborate (ionic liquid, IL) as a modifier for glassy carbon paste electrodes (GCPEs). Scanning electron (SEM) and atomic force microscopy (AFM) were employed to characterize the morphology and surface modification. The electrochemical behavior of BPA on IL-GNP/GCPEs was investigated and the results showed that IL-GNP composites enhance the electrochemical signal toward BPA due to the synergetic effect of GNPs and IL. The experimental parameters including the amount of IL and GNPs, pH of solution, pulse potential, step potential, and scan rate were optimized. Under optimal conditions, the proposed sensor exhibited a linear relationship between signal and BPA concentrations ranging from 0.02–5.0 μM, with detection and quantification limits of 6.4 nM and 0.02 μM respectively. Moreover, the electrochemical sensor showed good repeatability (RSD = 3.3%, n = 5 measurements), good reproducibility (RSD = 3.8%, n = 5 sensors), high accuracy of 95.3–104.5% recovery, acceptable selectivity, and stability. The sensor was successfully applied to the determination of BPA in water samples in contact with plastic materials. The results were satisfactory and in agreement with reference values from a standard HPLC method. © 2018
T2  - Journal of Electroanalytical Chemistry
T1  - A direct and sensitive electrochemical sensing platform based on ionic liquid functionalized graphene nanoplatelets for the detection of bisphenol A
VL  - 833
SP  - 370
EP  - 379
DO  - 10.1016/j.jelechem.2018.12.014
ER  - 
@article{
author = "Butmee, Preeyanut and Tumcharern, Gamolwan and Saejueng, Pranorm and Stanković, Dalibor M. and Ortner, Astrid and Jitcharoen, Juthamas and Kalcher, Kurt and Samphao, Anchalee",
year = "2018",
abstract = "A simple electrochemical sensor for bisphenol A (BPA) was developed based on a composite of graphene nanoplatelets (GNPs) and 1-butyl-2, 3-dimethylimidazolium tetrafluoroborate (ionic liquid, IL) as a modifier for glassy carbon paste electrodes (GCPEs). Scanning electron (SEM) and atomic force microscopy (AFM) were employed to characterize the morphology and surface modification. The electrochemical behavior of BPA on IL-GNP/GCPEs was investigated and the results showed that IL-GNP composites enhance the electrochemical signal toward BPA due to the synergetic effect of GNPs and IL. The experimental parameters including the amount of IL and GNPs, pH of solution, pulse potential, step potential, and scan rate were optimized. Under optimal conditions, the proposed sensor exhibited a linear relationship between signal and BPA concentrations ranging from 0.02–5.0 μM, with detection and quantification limits of 6.4 nM and 0.02 μM respectively. Moreover, the electrochemical sensor showed good repeatability (RSD = 3.3%, n = 5 measurements), good reproducibility (RSD = 3.8%, n = 5 sensors), high accuracy of 95.3–104.5% recovery, acceptable selectivity, and stability. The sensor was successfully applied to the determination of BPA in water samples in contact with plastic materials. The results were satisfactory and in agreement with reference values from a standard HPLC method. © 2018",
journal = "Journal of Electroanalytical Chemistry",
title = "A direct and sensitive electrochemical sensing platform based on ionic liquid functionalized graphene nanoplatelets for the detection of bisphenol A",
volume = "833",
pages = "370-379",
doi = "10.1016/j.jelechem.2018.12.014"
}
Butmee, P., Tumcharern, G., Saejueng, P., Stanković, D. M., Ortner, A., Jitcharoen, J., Kalcher, K.,& Samphao, A.. (2018). A direct and sensitive electrochemical sensing platform based on ionic liquid functionalized graphene nanoplatelets for the detection of bisphenol A. in Journal of Electroanalytical Chemistry, 833, 370-379.
https://doi.org/10.1016/j.jelechem.2018.12.014
Butmee P, Tumcharern G, Saejueng P, Stanković DM, Ortner A, Jitcharoen J, Kalcher K, Samphao A. A direct and sensitive electrochemical sensing platform based on ionic liquid functionalized graphene nanoplatelets for the detection of bisphenol A. in Journal of Electroanalytical Chemistry. 2018;833:370-379.
doi:10.1016/j.jelechem.2018.12.014 .
Butmee, Preeyanut, Tumcharern, Gamolwan, Saejueng, Pranorm, Stanković, Dalibor M., Ortner, Astrid, Jitcharoen, Juthamas, Kalcher, Kurt, Samphao, Anchalee, "A direct and sensitive electrochemical sensing platform based on ionic liquid functionalized graphene nanoplatelets for the detection of bisphenol A" in Journal of Electroanalytical Chemistry, 833 (2018):370-379,
https://doi.org/10.1016/j.jelechem.2018.12.014 . .
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Enzymatic glucose biosensor based on manganese dioxide nanoparticles decorated on graphene nanoribbons

Vukojević, Vesna; Đurđić, Slađana; Ognjanović, Miloš; Fabian, Martin; Samphao, Anchalee; Kalcher, Kurt; Stanković, Dalibor M.

(2018)

TY  - JOUR
AU  - Vukojević, Vesna
AU  - Đurđić, Slađana
AU  - Ognjanović, Miloš
AU  - Fabian, Martin
AU  - Samphao, Anchalee
AU  - Kalcher, Kurt
AU  - Stanković, Dalibor M.
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S157266571830479X
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7780
AB  - A disposable glucose biosensor was prepared using nanoparticles of MnO2 decorated on graphene nanoribbons by surface modification with drop coating with the GOx and Nafion®. Tested material was synthesized and characterized using several techniques. The biosensor could be operated under physiological conditions (0.1 M phosphate buffer, pH 7.4) and exhibited good reproducibility and stability. The linear range for the amperometric response of the biosensor at operating potential of +0.50 (versus Ag/AgCl) was from 0.1 to 1.4 mmol/l, with a detection limit of 0.05 mmol/l and high sensitivity of 56.32 μA/mmol cm2. Developed method was tested toward glucose quantification in real samples with satisfactory accuracy and precision.
T2  - Journal of Electroanalytical Chemistry
T1  - Enzymatic glucose biosensor based on manganese dioxide nanoparticles decorated on graphene nanoribbons
VL  - 823
SP  - 610
EP  - 616
DO  - 10.1016/j.jelechem.2018.07.013
ER  - 
@article{
author = "Vukojević, Vesna and Đurđić, Slađana and Ognjanović, Miloš and Fabian, Martin and Samphao, Anchalee and Kalcher, Kurt and Stanković, Dalibor M.",
year = "2018",
abstract = "A disposable glucose biosensor was prepared using nanoparticles of MnO2 decorated on graphene nanoribbons by surface modification with drop coating with the GOx and Nafion®. Tested material was synthesized and characterized using several techniques. The biosensor could be operated under physiological conditions (0.1 M phosphate buffer, pH 7.4) and exhibited good reproducibility and stability. The linear range for the amperometric response of the biosensor at operating potential of +0.50 (versus Ag/AgCl) was from 0.1 to 1.4 mmol/l, with a detection limit of 0.05 mmol/l and high sensitivity of 56.32 μA/mmol cm2. Developed method was tested toward glucose quantification in real samples with satisfactory accuracy and precision.",
journal = "Journal of Electroanalytical Chemistry",
title = "Enzymatic glucose biosensor based on manganese dioxide nanoparticles decorated on graphene nanoribbons",
volume = "823",
pages = "610-616",
doi = "10.1016/j.jelechem.2018.07.013"
}
Vukojević, V., Đurđić, S., Ognjanović, M., Fabian, M., Samphao, A., Kalcher, K.,& Stanković, D. M.. (2018). Enzymatic glucose biosensor based on manganese dioxide nanoparticles decorated on graphene nanoribbons. in Journal of Electroanalytical Chemistry, 823, 610-616.
https://doi.org/10.1016/j.jelechem.2018.07.013
Vukojević V, Đurđić S, Ognjanović M, Fabian M, Samphao A, Kalcher K, Stanković DM. Enzymatic glucose biosensor based on manganese dioxide nanoparticles decorated on graphene nanoribbons. in Journal of Electroanalytical Chemistry. 2018;823:610-616.
doi:10.1016/j.jelechem.2018.07.013 .
Vukojević, Vesna, Đurđić, Slađana, Ognjanović, Miloš, Fabian, Martin, Samphao, Anchalee, Kalcher, Kurt, Stanković, Dalibor M., "Enzymatic glucose biosensor based on manganese dioxide nanoparticles decorated on graphene nanoribbons" in Journal of Electroanalytical Chemistry, 823 (2018):610-616,
https://doi.org/10.1016/j.jelechem.2018.07.013 . .
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An advanced approach for electrochemical sensing of ibuprofen in pharmaceuticals and human urine samples using a bare boron-doped diamond electrode

Švorc, Lubomir; Strežova, Ivana; Kianičkova, Kristina; Stanković, Dalibor M.; Otrisal, Pavel; Samphao, Anchalee

(2018)

TY  - JOUR
AU  - Švorc, Lubomir
AU  - Strežova, Ivana
AU  - Kianičkova, Kristina
AU  - Stanković, Dalibor M.
AU  - Otrisal, Pavel
AU  - Samphao, Anchalee
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S1572665718303783
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7698
AB  - Herein, an advanced electroanalytical approach for the determination of ibuprofen based on the use of a bare and electrochemically untreated boron-doped diamond electrode is presented. Cyclic voltammetric study revealed that the electrode reaction of the analyte was manifested by the presence of well-shaped irreversible and diffusion-driven oxidation peak at very high potential (+1.75 V vs. Ag/AgCl/3 mol L−1KCl reference electrode) in 1 mol L−1perchloric acid. After optimization of experimental conditions, the peak current of ibuprofen was proportionally linear from 9.49 × 10−7to 6.69 × 10−5mol L−1providing both differential pulse (DPV) and square-wave voltammetric (SWV) techniques, respectively. The elaborated electroanalytical protocol rendered low detection limits of 4.1 × 10−7and 9.3 × 10−7mol L−1in association with favourable intra-day repeatability (relative standard deviation of 3.6 and 4.6%) using DPV and SWV procedures, respectively. The effect of interfering compounds such as ascorbic acid, dopamine, caffeine, uric acid and glucose on the current response of ibuprofen was explored in details. The usefulness of the proposed approach was verified in the analysis of a variety of commercial brands of pharmaceuticals and spiked human urine samples with the significant range of recovery percentages (for pharmaceuticals: 99.8–107.5% and 99.8–105.0% by DPV and SWV, for urine: 95–107% and 97–103% by DPV and SWV). Taking these features into account, the developed protocol may be exploited as a novel, simple and efficient tool in drug quality control analysis and analysis of biological samples. In addition, a bare and electrochemically untreated boron-doped diamond electrode may be applied as a progressive electrochemical sensor and helpful alternative to previously utilized electrochemical platforms in this field.
T2  - Journal of Electroanalytical Chemistry
T1  - An advanced approach for electrochemical sensing of ibuprofen in pharmaceuticals and human urine samples using a bare boron-doped diamond electrode
VL  - 822
SP  - 144
EP  - 152
DO  - 10.1016/j.jelechem.2018.05.026
ER  - 
@article{
author = "Švorc, Lubomir and Strežova, Ivana and Kianičkova, Kristina and Stanković, Dalibor M. and Otrisal, Pavel and Samphao, Anchalee",
year = "2018",
abstract = "Herein, an advanced electroanalytical approach for the determination of ibuprofen based on the use of a bare and electrochemically untreated boron-doped diamond electrode is presented. Cyclic voltammetric study revealed that the electrode reaction of the analyte was manifested by the presence of well-shaped irreversible and diffusion-driven oxidation peak at very high potential (+1.75 V vs. Ag/AgCl/3 mol L−1KCl reference electrode) in 1 mol L−1perchloric acid. After optimization of experimental conditions, the peak current of ibuprofen was proportionally linear from 9.49 × 10−7to 6.69 × 10−5mol L−1providing both differential pulse (DPV) and square-wave voltammetric (SWV) techniques, respectively. The elaborated electroanalytical protocol rendered low detection limits of 4.1 × 10−7and 9.3 × 10−7mol L−1in association with favourable intra-day repeatability (relative standard deviation of 3.6 and 4.6%) using DPV and SWV procedures, respectively. The effect of interfering compounds such as ascorbic acid, dopamine, caffeine, uric acid and glucose on the current response of ibuprofen was explored in details. The usefulness of the proposed approach was verified in the analysis of a variety of commercial brands of pharmaceuticals and spiked human urine samples with the significant range of recovery percentages (for pharmaceuticals: 99.8–107.5% and 99.8–105.0% by DPV and SWV, for urine: 95–107% and 97–103% by DPV and SWV). Taking these features into account, the developed protocol may be exploited as a novel, simple and efficient tool in drug quality control analysis and analysis of biological samples. In addition, a bare and electrochemically untreated boron-doped diamond electrode may be applied as a progressive electrochemical sensor and helpful alternative to previously utilized electrochemical platforms in this field.",
journal = "Journal of Electroanalytical Chemistry",
title = "An advanced approach for electrochemical sensing of ibuprofen in pharmaceuticals and human urine samples using a bare boron-doped diamond electrode",
volume = "822",
pages = "144-152",
doi = "10.1016/j.jelechem.2018.05.026"
}
Švorc, L., Strežova, I., Kianičkova, K., Stanković, D. M., Otrisal, P.,& Samphao, A.. (2018). An advanced approach for electrochemical sensing of ibuprofen in pharmaceuticals and human urine samples using a bare boron-doped diamond electrode. in Journal of Electroanalytical Chemistry, 822, 144-152.
https://doi.org/10.1016/j.jelechem.2018.05.026
Švorc L, Strežova I, Kianičkova K, Stanković DM, Otrisal P, Samphao A. An advanced approach for electrochemical sensing of ibuprofen in pharmaceuticals and human urine samples using a bare boron-doped diamond electrode. in Journal of Electroanalytical Chemistry. 2018;822:144-152.
doi:10.1016/j.jelechem.2018.05.026 .
Švorc, Lubomir, Strežova, Ivana, Kianičkova, Kristina, Stanković, Dalibor M., Otrisal, Pavel, Samphao, Anchalee, "An advanced approach for electrochemical sensing of ibuprofen in pharmaceuticals and human urine samples using a bare boron-doped diamond electrode" in Journal of Electroanalytical Chemistry, 822 (2018):144-152,
https://doi.org/10.1016/j.jelechem.2018.05.026 . .
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