PLANT-TISSUE ELECTRODE FOR THE DETERMINATION OF CATECHOL

被引：24

作者：

BOTRE, F ^{[1
]}

MAZZEI, F ^{[1
]}

LANZI, M ^{[1
]}

LORENTI, G ^{[1
]}

BOTRE, C ^{[1
]}

机构：

[1] UNIV LA SAPIENZA,DIPARTIMENTO STUDI CHIM & TECNOL SOSTANZE BIOL ATT,I-00185 ROME,ITALY

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 255卷 / 01期

关键词：

AMPEROMETRY; BIOSENSORS; CATECHOL; ENZYME ELECTRODES; PLANT-TISSUE ELECTRODES;

D O I：

10.1016/0003-2670(91)85087-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A device based on the presence of polyphenol oxidase in potato (Solanum tuberosum) tissue was set up to determine catechol. The sensor is realized by coupling a thin slice of potato tissue with a Clark electrode capable of measuring oxygen evolution from a catechol solution. In the concentration range 2.5 X 10(-5) -2.3 X 10(-4) M there is perfect linearity between the electrode signal and catechol concentration in solution. The high stability and the reliability and reproducibility of the results, tested over a period longer than 3 months, and the sensitivity of the device towards mono- and polyphenol derivatives, allow the application of such a system in physiological and pharmacological quality control.

引用

页码：59 / 62

页数：4

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