ELECTROCHEMICAL IMMOBILIZATION OF ENZYMES .3. IMMOBILIZATION OF GLUCOSE-OXIDASE IN THIN-FILMS OF ELECTROCHEMICALLY POLYMERIZED PHENOLS

被引:163
作者
BARTLETT, PN [1 ]
TEBBUTT, P [1 ]
TYRRELL, CH [1 ]
机构
[1] UNIV WARWICK, DEPT CHEM, COVENTRY CV4 7AL, W MIDLANDS, ENGLAND
关键词
D O I
10.1021/ac00026a008
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Electrochemically polymerized films of phenol and derivatives of phenol can be used to immobilize glucose oxidase in a thin layer at a platinum electrode. The immobilized enzyme retains its activity toward glucose oxidation, and hydrogen peroxide generated by the enzyme-catalyzed reaction of glucose with oxygen can be detected at 0.9 V vs SCE. The responses of the immobilized enzyme electrodes toward glucose are analyzed in terms of a thin-layer model. Of the five phenols employed (phenol, 3-nitrophenol, pyrogallol, 4-hydroxybenzenesulfonic acid, and bromophenol blue), phenol itself is found to be the most suitable.
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页码:138 / 142
页数:5
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