Cobalt(II)Hexacyanoferrate Film Modified Glassy Carbon Electrode for Construction of a Glucose Biosensor
作者:
Jingzhong Zhang,
Shaojun Dong,
期刊:
Analytical Letters
(Taylor Available online 1999)
卷期:
Volume 32,
issue 15
页码: 2925-2936
ISSN:0003-2719
年代: 1999
DOI:10.1080/00032719908543017
出版商: Taylor & Francis Group
关键词: Cobalt(II)hexacyanoferrate;Glucose oxidase;Biosensor;Modified electrode;Amperometry
数据来源: Taylor
摘要:
An amperometric glucose biosensor was constructed based on a glassy carbon electrode modified with a Cobalt(II)hexacyanoferrate film which catalyzes electroreduction of hydrogen peroxide. Gelatin was used as immobilization matrix. Interference could be effectively eliminated by the combination of low detection potential with a Nafion coating. A low applied potential can avoid oxidation of interferences such as ascorbic acid, uric acid,p-acetyl-aminophenol, etc.. Nafion coating prevents interferences from access to the electrode surface by electrostatic repulsion. A wide linear range of detection was obtained. Analytical performance parameters are given and kinetic analysis discussed.
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