Direct oxidation of ascorbic acid at an edge plane pyrolytic graphite electrode: A comparison of the electroanalytical response with other carbon electrodes

被引：102

作者：

Wantz, F ^{[1
]}

Banks, CE ^{[1
]}

Compton, RG ^{[1
]}

机构：

[1] Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England

来源：

ELECTROANALYSIS | 2005年 / 17卷 / 17期

关键词：

ascorbic acid; direct oxidation; edge plane pyrolytic graphite electrode; basal plane pyrolytic graphite electrode; glassy carbon electrode; boron doped diamond electrode;

D O I：

10.1002/elan.200503259

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The direct electrochemical oxidation of ascorbic acid at an edge plane pyrolytic graphite electrode (EPPG) is investigated and compared with other common carbon-based electrodes, specifically glassy carbon, boron doped diamond and basal plane pyrolytic graphite. It is found that the EPPG electrode shows a significantly higher degree of electrochemical reversibility than the other electrode substrates giving rise to an analytically optimized limit of detection and sensitivity of 7.1 x 10(-5) M and 0.065 A M-1 respectively.

引用

页码：1529 / 1533

页数：5

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