ISO 3091:1975 肉和肉制品.硝酸盐含量的测定（参照法）

标准编号：ISO 3091:1975

中文名称：肉和肉制品.硝酸盐含量的测定（参照法）

英文名称：Meat and meat products — Determination of nitrate content (Reference method)

发布日期：1975-09

标准范围

该方法包括用热水提取供试品，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。通过添加磺胺和盐酸萘乙二胺形成红色，并在538 nm波长下进行光度测量。

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.

标准预览图