A rapid field detection method for arsenic in drinking water

被引：38

作者：

Baghel, Anuradha ^{[1
]}

Singh, Beer ^{[1
]}

Pandey, Pratibha ^{[1
]}

Sekhar, K. ^{[1
]}

机构：

[1] Def Res & Dev Estab, Gwalior 474002, India

来源：

ANALYTICAL SCIENCES | 2007年 / 23卷 / 02期

关键词：

D O I：

10.2116/analsci.23.135

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, a rapid colorimetric method for arsenic detection was developed. Different reagents containing magnesium turnings in combination with a series of acids were tested for arsine generation. The arsine was then allowed to react with auric chloride on Whatman filter paper No. 3, which in turn changed color. The detection time and detection limit were measured for each acid. Oxalic acid was found to be the most appropriate acid among all the acids used for detection in this study. It took 10 min to detect 10 ppb arsenic concentration and only I min to detect concentrations higher than 50 ppb. This method thus reduced the detection time for arsenic and has the potential to develop better field kit.

引用

页码：135 / 137

页数：3

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