标准摘要
[中文适用范围]: 该方法包括分解测试部分,用氯化锡(II)将砷(V)还原为砷(III),并通过初生氢的作用将砷转化为胂,通过胂与银的作用形成红色络合物二乙基二硫代氨基甲酸酯并在520 nm波长下测量。 [外文原描述]: 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.
英文名称Fruits, vegetables and derived products — Determination of arsenic content — Silver diethyldithiocarbamate spectrophotometric method