Determination of arsenic in soil extracts by flow-through anodic stripping coulometry

被引：0
|
作者：
Lastincová, J [1 ]
Jurica, L [1 ]
Beinrohr, E [1 ]
机构：
[1] Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Dept Analyt Chem, Bratislava 81237, Slovakia
来源：
POLISH JOURNAL OF ENVIRONMENTAL STUDIES | 2004年 / 13卷 / 05期
关键词：
arsenic; soil extract; flow-through coulometry;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Flow-through coulometry was used for the determination of arsenic in soil extracts in 2 mol/dm(-3) HCl solution. Arsenic (III) species were deposited on gold plated porous working electrodes and then galvanostatically stripped. The procedure was optimized and possible interferences were identified. The total AS content was determined after a reduction step in a microwave oven with hydrazine hydrochloride. The detection limit was found to be 0.15 mug dm(-3) in the analyzed solution. A linear response range was achieved up to AS concentration of several mg dm(-3). The procedure was applied for the analysis of soil extract samples from three localities in Slovakia.
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页码：533 / 536
页数：4
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