Fruits, vegetables and derived products — Determination of arsenic content — Silver diethyldithiocarbamate spectrophotometric method
NORMA vydaná dňa 1.12.1982
Designation standards: ISO 6634:1982
Publication date standards: 1.12.1982
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: International technical standard
Kategória: Technické normy ISO
Description / Abstract: The method consists in decomposing a test portion, reducing arsenic (V) to arsenic (III) with tin(II) chloride and transforming the arsenic into arsine by action of nascent hydrogen, forming a red coloured complex by the action of the arsine on silver diethyldithiocarbamate and measuring at a wavelength of 520 nm.