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A rapid method for the determination of arsenic concentrations in urine at field locations
American Industrial Hygiene Association Journal
|July 1, 1976
Abstract:
A colorimetric method for arsenic in urine utilizing a portable hood and requiring minimal laboratory facilities is described. Urine samples are combusted in a hot plate-oven with MgO and Mg(No3)2. Arsine is generated from the ashed product and passed into silver diethyldithio-carbamate in pyridine. Inorganic and organic arsenicals in urine at 0.03 ppm with 6% variation is detectable.