GRAPE TISSUE-BASED ELECTROCHEMICAL SENSOR FOR THE DETERMINATION OF HYDROGEN-PEROXIDE

被引：24

作者：

WIJESURIYA, D ^{[1
]}

LIN, MS ^{[1
]}

RECHNITZ, GA ^{[1
]}

机构：

[1] UNIV HAWAII MANOA,DEPT CHEM,HAWAII BIOSENSOR LAB,2545 THE MALL,HONOLULU,HI 96822

来源：

ANALYTICA CHIMICA ACTA | 1990年 / 234卷 / 02期

基金：

美国国家科学基金会;

关键词：

Hydrogen peroxide;

D O I：

10.1016/S0003-2670(00)83590-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The use of grape tissue as a source of catalase for the determination of hydrogen peroxide is reported. A slice of grape tissue attached to the membrane of a Clark-type oxgen sensor was used to monitor the oxidation of hydrogen peroxide by catalase. At the steady state, the sensor responds linearly to hydrogen peroxide in the concentration range 1 × 10-5-5 × 10-4 M. The response time (T90) was of the order of 1 min for this sensor. No interference was observed from ethanol, amino acids, glucose and lactic acid. The long-term stability of the grape tissue sensor was much better than previously reported immobilized enzyme and liver tissue-based hydrogen peroxide sensors. © 1990.

引用

页码：453 / 457

页数：5

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