Potentiometric biosenzor for glucose determination based on a SnO2 redox electrode

被引:0
|
作者
Kormos, F
Tarsiche, I
Vegh, P
机构
[1] Inst Cercetari Chim Raluca Ripan, Cluj Napoca 3400, Romania
[2] INCDTIM, Cluj Napoca 3400, Romania
来源
REVISTA DE CHIMIE | 2003年 / 54卷 / 12期
关键词
biosensor; potentiometry; glucose; enzyme; SnO2; film;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The paper deals with the manufacture of a potentiometric biosensor for glucose based on a SnO2 redox electrode. The enzyme membrane is cellulose acetate with glucose oxidase and peroxidase physically immobilized. The optimum conditions for obtaining the SnO2 film and the enzymes immobilization were established using several measurement techniques: electric resistance in four points, impedance spectroscopy, direct potentiometry and cyclic voltammetry. The functional characteristics of the biosensor were tested by direct potentiometry. The biosensor was used for the determination of glucose in meat samples. The results were compared with those obtained by the Bertrand method.
引用
收藏
页码:946 / 949
页数:4
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