ISO 6635-1984 标准详情
- 标准号:ISO 6635-1984
- 中文标题:水果、蔬菜及其制品 亚硝酸盐和硝酸盐含量的测定 分子吸收光谱法
- 英文标题:Fruits, vegetables and derived products; Determination of nitrite and nitrate content; Molecular absorption spectrometric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1984-11
The method consists in extracting a test portion with hot water, precipitating the protein by addition of solutions of potassium hexacyanoferrate(II) and zinc acetate, and filtrating the precipitate. Further, reduction of the nitrate to nitrite by me
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