标准摘要
[中文适用范围]： 该方法包括用热水提取测试部分、沉淀蛋白质并过滤。 用金属镉将提取的硝酸盐还原成亚硝酸盐。 加入磺胺和盐酸萘乙二胺形成红色，并在538 nm波长处进行光度测量。 [外文原描述]： The method consists in extracting of a test portion with hot water, precipitating of proteins and filtrating. Reduction of the extracted nitrates into nitrites by metallic cadmium. Formation of a red colouration by adding of sulfanilamide and nphthyl ethylenediamine hydrochloride and photometric measurement at a wavelength of 538 nm.
英文名称Meat and meat products — Determination of nitrate content (Reference method)