Electrocatalytic oxidation of Bisphenol A at SDS self-assembled monolayers and [bupy]PF6 modified carbon paste electrode and its electrochemical determination

doi:10.3724/SP.J.1095.2012.00164

Chinese Journal of Applied Chemistry

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Electrocatalytic oxidation of Bisphenol A at SDS self-assembled monolayers and [bupy]PF₆ modified carbon paste electrode and its electrochemical determination

ZHANG Yanmei¹, DUAN Chengqian^1,2, GAO Zuoning¹*

(1.Key Laboratory of Energy Sources and Chemical Engineering,College of Chemistry and
Chemical Engineering,Ningxia University,Yinchuan 750021;
2.Chemical Teaching and Research Section of Higher Vocational College,Ningxia Medical University,Yinchuan)

Received:2011-04-21 Revised:2011-07-16 Published:2012-03-10 Online:2012-03-10
Contact: Zuo-Ning Gao
About author:

Abstract

Abstract: The electrocatalytic oxidation and electrochemical kinetics of bisphenol A(BPA) were investigated at sodium dodecyl sulphate(SDS) self-assembled monolayer and N-butylpyridinium hexafluorophosphate([bupy]PF6) modified carbon paste electrode(CPE). The experimental results indicated that BPA electrochemical behavior exhibited an irreversible electrochemical oxidation process at SDS-[bupy]PF6/CPE. The electrochemical kinetic parameters were determined by cyclic voltammetry(CV), chronoamperometry(CA). The oxidation peak current of BPA had a good linear relationship with the concentration of BPA in the range of 1.0×10-5~1.0×10-3 mol/L with a correlation coefficient of 0.9981, and a detection limit of 3.01×10-7 mol/L(S/N=3) was obtained by square wave voltammetry(SWV). The method was applied to determine quantitative BPA content in lake water samples with satisfactory results.

Key words: bisphenol A, sodium dodecyl sulphate, N-Butylpyridinium hexafluorophosphate, carbon paste electrode, electrocatalytic oxidation

CLC Number:

O646

ZHANG Yanmei1, DUAN Chengqian1,2, GAO Zuoning1*. Electrocatalytic oxidation of Bisphenol A at SDS self-assembled monolayers and [bupy]PF₆ modified carbon paste electrode and its electrochemical determination[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2012.00164.

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Electrocatalytic oxidation of Bisphenol A at SDS self-assembled monolayers and [bupy]PF₆ modified carbon paste electrode and its electrochemical determination

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