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
收藏
页码：333 / 338
页数：6
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