title: A rapid method for the determination of arsenic concentrations in urine at field locations.
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.
mesh_terms: D001151:Arsenic / Q000652:urine*; D001152:Arsenicals / Q000652:urine; D003124:Colorimetry; D006801:Humans; D008722:Methods
chemical_list: D001152:Arsenicals; D001151:Arsenic