REMOTE ELECTROCHEMICAL BIOSENSOR FOR FIELD MONITORING OF PHENOLIC-COMPOUNDS

被引：51

作者：

WANG, J

CHEN, QA

机构：

[1] Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 312卷 / 01期

关键词：

BIOSENSORS; PHENOLIC COMPOUNDS; FIELD MONITORING;

D O I：

10.1016/0003-2670(95)00207-G

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A submersible probe for monitoring of phenolic compounds at large sample/instrument distances is described. A specially designed device, comprising a specially designed tyrosinase enzyme electrode coupled to a 50-ft long shielded cable (via environmentally sealed connectors), is used. Challenges associated with the adaptation of enzyme electrodes to remote sensing are addressed. Variables relevant to field operations are explored and discussed. The combination of biocatalytic recognition and amperometric transduction offers highly selective measurements of micromolar concentrations of phenolic substrates in untreated river and groundwater samples. The concept seems suited for the remote monitoring of other environmentally relevant compounds via a judicious selection of the biorecognition element.

引用

页码：39 / 44

页数：6

共 11 条

[1] MEASUREMENT OF SODIUM-HYDROXIDE CONCENTRATION WITH A RENEWABLE REAGENT-BASED FIBEROPTIC SENSOR [J].