The application of cholinesterase potentiometric biosensor for preliminary screening of the toxicity of waste waters

被引：22

作者：

Evtugyn, GA ^{[1
]}

Rizaeva, EP ^{[1
]}

Stoikova, EE ^{[1
]}

Latipova, VZ ^{[1
]}

Budnikov, HC ^{[1
]}

机构：

[1] Kazan State Univ, Ecol Fac, RUS-420008 Kazan, Russia

来源：

ELECTROANALYSIS | 1997年 / 9卷 / 14期

关键词：

toxicity; cholinesterase; biosensor; inhibition; enzyme electrode;

D O I：

10.1002/elan.1140091417

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The application of cholinesterase biosensor for preliminary testing of total pollution of domestic and industrial discharges has been investigated. The results indicate that biosensor-based testing is more sensitive than paramecia bioassay. For numerous samples tested, the inhibition degree of biosensor response exceeds the appropriate value of acute toxicity on Paramecium caudatum. Electrochemical oxidation of the samples, before the biosensor testing readily removes oxidizable compounds which do not effect a real risk of environmental pollution. Simultaneous determination of inhibitory effect, acute toxicity and biochemical (chemical) oxygen demand makes it possible to infer a possible source of contamination of waters.

引用

页码：1124 / 1128

页数：5