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Vol. 26 No. 3 (2014): Vol 26 Issue 3

Copyright (c) 2014 AJC

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Determination of Dopamine in the Presence of Ascorbic Acid Using Silver-Diethyldithiocarbamate Modified Electrode

https://doi.org/10.14233/ajchem.2014.15466
Yue-Ying Liu
College of Biological Science and Engineering, Hebei University of Economics and Business, Shijiazhuang 050061, P.R. China
Shi-Hao Zhao
College of Biological Science and Engineering, Hebei University of Economics and Business, Shijiazhuang 050061, P.R. China

Corresponding Author(s) : Shi-Hao Zhao

zhaoshihao_1@163.com

Asian Journal of Chemistry, Vol. 26 No. 3 (2014): Vol 26 Issue 3

Abstract

A glassy carbon electrode (GCE) was modified with silver-diethyldithiocarbamate (DDTC Ag) modified electrode has been constructed. The DDTC Ag modified electrode showed an excellent electrocatalytical effect on the oxidation of dopamine. In the pH 2.56 buffer solution, the oxidation peak of dopamine was linear with its concentration from 5.0 × 10-7 – 6.0 × 10-5 mol L-1, detect limit of it reached 1.0 × 10-7 mol L-1. Moreover, the interference of ascorbic acid with the determination of dopamine could be eliminated. The method could obtain better result when it applied to the determination dopamine in serum and medical samples.

Keywords

Silver-diethyldithiocarbamate Modified electrode Dopamine Ascorbic acid
Liu, Y.-Y., & Zhao, S.-H. (2014). Determination of Dopamine in the Presence of Ascorbic Acid Using Silver-Diethyldithiocarbamate Modified Electrode. Asian Journal of Chemistry, 26(3), 677–680. https://doi.org/10.14233/ajchem.2014.15466
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