Abstract
This study has found that the silver diethyldithiocarbamate method for arsenic is superior to the heteropoly blue method in time of analysis and ease of manipulation, and is superior to both the Gutzeit and the heteropoly blue methods in precision and accuracy. The procedure is applicable to the measurement of arsenic in the range of public health interest in raw river waters, finished water, and domestic sewage and is unaffected by wide variations in mineral and organic content of the sample.
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