Direct electrochemical determination of ascorbic acid by a cobalt(II) tetra-neopentyloxy phthalocyanine-multi-walled carbon nanotubes glassy carbon electrode

被引：16

作者：

Zuo, Xia ^{[1
]}

Li, Nan ^{[1
]}

Zhang, Hui ^{[2
]}

机构：

[1] Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China

[2] Beijing Double Crane Pharmaceut Co Ltd, Beijing 100102, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2012年 / 47卷 / 06期

基金：

北京市自然科学基金;

关键词：

CHEMICALLY-MODIFIED ELECTRODES; ELECTROCATALYTIC OXIDATION; VITAMIN-C; INJECTION; BEHAVIOR;

D O I：

10.1007/s10853-011-6099-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A cobalt(II) tetra-neopentyloxy phthalocyanine-multi-walled carbon nanotubes (CoTNPPc-MWNTs) composite was synthesized and characterized by UV-Vis spectra and transmission electron microscopy. The CoTNPPc-MWNTs glassy carbon electrode (CoTNPPc-MWNTs/GCE) was prepared by drop coating. The electrocatalytic performance of the chemically modified electrode was investigated for oxidation of ascorbic acid (AA). It was found that in phosphate buffer solution at pH = 6.60, the chemically modified electrode exhibited excellent electrocatalytic activity toward the oxidation of AA. The oxidation peak current increased linearly with the concentration of AA in the range of 10 mu M-1.6 mM within the detection limit of 5 mu M and low response time of 4 s.

引用

页码：2731 / 2735

页数：5

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