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Molybdenum-Blue Spectrophotometric Method for Determination of Lewisite Vapor in Air

 

作者: WilliamK. Fowler,   ThomasT. Hancock,   JohnJ. Martin,  

 

期刊: Analytical Letters  （Taylor Available online 1985）
卷期: Volume 18, issue 19  

页码: 2381-2394

 

ISSN:0003-2719

 

年代: 1985

 

DOI:10.1080/00032718508082579

 

出版商: Taylor & Francis Group

 

关键词: lewisite;2-chlorovinyldichloroarsine;molybdenum blue;spectrophotometry impinger;solid sorbent;air sampling;air analysis;organoarsenicals

 

数据来源: Taylor

 

摘要:

A method was developed for determining lewisite vapor in air. The method entails the collection of lewisite in an impinger or solid-sorbent sampler, conversion of the trapped lewisite to arsenite ion, oxidation of arsenite to arsenate, and determination of the arsenate ion by molybdenum-blue spectrophotometry. Relative to other available techniques, the one described here requires a minimum of instrumentation and can be executed without the use of highly toxic lewisite solutions for instrument calibration.

 

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