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Citation: YU Jian-Guo, WANG Yong-Le, HAN Li-Mei, GU Hui-Ke, ZHAO Yong-Nan, ZHANG Heng-Bin. Electrocatalytic Oxidation of Ascorbic Acid at Poly(para-hydroxybenzoic acid) Modified Glassy Carbon Electrode[J]. Chinese Journal of Applied Chemistry, ;2009, 26(9): 1117-1119. shu

Electrocatalytic Oxidation of Ascorbic Acid at Poly(para-hydroxybenzoic acid) Modified Glassy Carbon Electrode

1.
a College of Materials Science and Chemistry Engineering & Tianjin Key Laboratory of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin 300160;
2.
b College of Chemistry, Jilin University, Changchun

Corresponding author: YU Jian-Guo,
Received Date: 1 September 2008
Available Online: 10 November 2008
Fund Project: 天津市教委科技发展基金(2006ba470) (2006ba470)天津工业大学科研启动基金(029087)资助项目 (029087)

Poly(para-hydroxybenzoic acid) (poly-PHB) modified glassy carbon electrode(GCE) was prepared by cyclic voltammetry.The modified GCE showed good electrocatalytic activity for AA and current response.The peak potential was shifted negatively from 0.238 3 V to 0.033 6 V.A linear relationship existed between the anodic current and the AA concentration in the range of 2.6×10^-5 to 3.68 ×10^-4 mol/L with a correlation coefficient of 0.998 4(n=11).The detection limit(S/N=3) was 5×10^-6 mol/L.The poly-PHB/GCE exhibited an effective and fast catalytic response to the oxidation of AA with good reprodu-cibility and stability.
- para-hydroxybenzoic acid,
- ascorbic acid,
- electrocatalysis,
- voltammetry
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