TY  - JOUR
AU  - Pastor, Ferenc
AU  - Dejmkova, Hana
AU  - Zima, Jiri
AU  - Barek, Jiri
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1334
AB  - The possibility of determination of chloramphenicol by differential pulse voltammetry at four different carbon paste electrodes, in the full pH range (2-12) of Britton-Robinson (BR) buffer was investigated. Electrodes were prepared by mixing spectroscopic graphite powder or glassy carbon microbeads with mineral oil (Nujol) or tricresyl phosphate. Under optimal conditions (BR buffer pH 12, the electrode prepared from glassy carbon microbeads and tricresyl phosphate), linear calibration graph was obtained only in 10-5 M chloramphenicol concentration range. Determination of lower concentrations of chloramphenicol was complicated by irreproducible peak of oxygen from the carbon paste which overlapped with peak of chloramphenicol. Addition of sodium sulfite removed the oxygen peak without influence on the peak of chloramphenicol. Under optimal conditions (electrode paste made from glassy carbon microbeads, BR buffer pH 10 and 0.5 M sodium sulfite), straight calibration line was obtained in the 10(-6) and 10(-5) M chloramphenicol concentration range. Limit of determination was 5 x 10(-7) mol/l.
PB  - Inst Organic Chem And Biochem, Prague 6
T2  - Collection of Czechoslovak Chemical Communications
T1  - Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface
VL  - 76
IS  - 5
SP  - 383
EP  - 397
DO  - 10.1135/cccc2011011
ER  - 

@article{
author = "Pastor, Ferenc and Dejmkova, Hana and Zima, Jiri and Barek, Jiri",
year = "2011",
abstract = "The possibility of determination of chloramphenicol by differential pulse voltammetry at four different carbon paste electrodes, in the full pH range (2-12) of Britton-Robinson (BR) buffer was investigated. Electrodes were prepared by mixing spectroscopic graphite powder or glassy carbon microbeads with mineral oil (Nujol) or tricresyl phosphate. Under optimal conditions (BR buffer pH 12, the electrode prepared from glassy carbon microbeads and tricresyl phosphate), linear calibration graph was obtained only in 10-5 M chloramphenicol concentration range. Determination of lower concentrations of chloramphenicol was complicated by irreproducible peak of oxygen from the carbon paste which overlapped with peak of chloramphenicol. Addition of sodium sulfite removed the oxygen peak without influence on the peak of chloramphenicol. Under optimal conditions (electrode paste made from glassy carbon microbeads, BR buffer pH 10 and 0.5 M sodium sulfite), straight calibration line was obtained in the 10(-6) and 10(-5) M chloramphenicol concentration range. Limit of determination was 5 x 10(-7) mol/l.",
publisher = "Inst Organic Chem And Biochem, Prague 6",
journal = "Collection of Czechoslovak Chemical Communications",
title = "Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface",
volume = "76",
number = "5",
pages = "383-397",
doi = "10.1135/cccc2011011"
}

Pastor, F., Dejmkova, H., Zima, J.,& Barek, J.. (2011). Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface. in Collection of Czechoslovak Chemical Communications
Inst Organic Chem And Biochem, Prague 6., 76(5), 383-397.
https://doi.org/10.1135/cccc2011011

Pastor F, Dejmkova H, Zima J, Barek J. Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface. in Collection of Czechoslovak Chemical Communications. 2011;76(5):383-397.
doi:10.1135/cccc2011011 .

Pastor, Ferenc, Dejmkova, Hana, Zima, Jiri, Barek, Jiri, "Determination of Chloramphenicol by Differential Pulse Voltammetry at Carbon Paste Electrodes - the Use of Sodium Sulfite for Removal of Oxygen from  Electrode Surface" in Collection of Czechoslovak Chemical Communications, 76, no. 5 (2011):383-397,
https://doi.org/10.1135/cccc2011011 . .