Reference

Analysis of trace amounts of arsenic in water

Analysis of trace amounts of arsenic in water. Improvement of the silver diethyldithiocarbamate type coloring solutions. Suyama, Satoshi; Yajima, Yoichi (Nagano-ken Seimitsu Kogyo Shiken-sho, Nagano, Japan). Nagano-ken Seimitsu Kogyo Shikenjo Jigyo Gaiyo, 100-3 (Japanese) 1976. CODEN: NSKGD2. DOCUMENT TYPE: Journal CA Section: 61 (Water) Section cross-reference(s): 79 A trace amt. of As was detd. by a coloring soln. contg. Ag diethyldithiocarbamate [1470-61-7] 0.5 g, hexamethylenetetramine [100-97-0] 5 g, and CHCl3 [67-66-3] 100 mL; this soln. gave max. absorbance at 500 nm. The concn. vs. absorbance was linear and the soln. had a long shelf life. The lowest amt. of As detd. was 5 mg/5mL sample.

A simple method for the determination of trace arsenic in waters by a detector tube

A simple method for the determination of trace arsenic in waters by a detector tube. Suyama, Satoshi; Yajima, Yoichi (Lab. Precis. Ind., Japan). Kogyo Yosui, 231, 17-20 (Japanese) 1977. CODEN: KOYOAW. ISSN: 0454-1545. DOCUMENT TYPE: Journal CA Section: 61 (Water) Section cross-reference(s): 79 The As is detd. by the use of a detector tube comprising silica gel columns contg. preadsorbed Ag diethyldithiocarbamate [1470-61-7] as the coloring agent. The As is detd. in waters in ~30 min in the concn. range 0.02-10 ppm.