Detection of volatile arsenic chloride species during hydride generation: a new prospectus

被引：33

作者：

Mester, Z ^{[1
]}

Sturgeon, RE ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R9, Canada

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 2001年 / 16卷 / 05期

关键词：

D O I：

10.1039/b100750p

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Volatile inorganic- and organo-arsenic chloride species were detected following hydride generation. Arsenic trichloride can be formed and sampled from the headspace of arsenate or arsenite solutions following simple acidification to 2-8 M HCl. Mono- and dimethylarsenic chloride species are formed during conventional hydride generation using sodium tetrahydroborate in a HCl medium. Increased HCl concentration in the sample solution promotes the formation of volatile chloride species in the hydride mixtures. The generated arsenic chloride species were characterized using electron impact ionization mass spectrometry.

引用

页码：470 / 474

页数：5

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