Hand-held lead analyzer

被引：35

作者：

Yarnitzky, C ^{[1
]}

Wang, J ^{[1
]}

Tian, BM ^{[1
]}

机构：

[1] New Mexico State Univ, Dept Chem & Biochem, Las Cruces, NM 88003 USA

来源：

TALANTA | 2000年 / 51卷 / 02期

关键词：

design and operation; lead; electrochemical analysis;

D O I：

10.1016/S0039-9140(99)00267-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The design and operation of a hand-held electrochemical analyzer for field screening of trace lead are described. The stripping-based instrument meets the size, weight and power-consumption requirements of many decentralized lead testings, while maintaining the high sensitivity and reliability of centralized stripping operations. When coupled to screen-printed disposable sensors, the unit's response varies linearly with the lead level between 20 and 300 mu g/l (50-s deposition). Comparison with lead results obtained with the small and established instruments yielded an excellent correlation (r = 0.999). Convenient quantification of lead in drinking water is accomplished with quiescent, nondeaerated small samples. Such performance and portability hold great promise to a host of environmental, clinical, or industrial applications. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：333 / 338

页数：6

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