Simultaneous measurement of epinephrine and ascorbic acid at the carbon nanotube electrode

被引：8

作者：

Hu, CG ^{[1
]}

Wang, WL ^{[1
]}

Liao, KJ ^{[1
]}

Wang, YT ^{[1
]}

机构：

[1] Chongqing Univ, Dept Appl Phys, Chongqing 400044, Peoples R China

来源：

SCIENCE AND TECHNOLOGY OF NANOMATERIALS - ICMAT 2003 | 2005年 / 23卷

关键词：

ascorbic acid; carbon nanotubes; electroanalysis; electrochemistry; epinephrine; voltammetry;

D O I：

10.4028/www.scientific.net/JMNM.23.305

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrochemical behaviors of epinephrine and ascorbic acid have been studied at the carbon nanotube electrode using cyclic voltammetry. Electrocatalysis has been found for epinephrine redox reactions at the carbon nanotube electrode in the comparison with the glassy carbon electrode. A well-defined oxidative peak for ascorbic acid was observed at the carbon nanotube electrode with the peak potential negative shift versus the glassy carbon electrode. Low level of epinephrine can be determined at the carbon nanotube electrode selectively with high sensitivity in the presence of a large excess of ascorbic acid in the acidic media and in the physiological pH buffer solution.

引用

页码：305 / 308

页数：4

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