ISO 6636-3:1983 水果和蔬菜制品.锌含量的测定.第3部分:双硫腙光谱测定法
标准编号:ISO 6636-3:1983
中文名称:水果和蔬菜制品.锌含量的测定.第3部分:双硫腙光谱测定法
英文名称:Fruit and vegetable products — Determination of zinc content — Part 3: Dithizone spectrometric method
发布日期:1983-12
标准范围
该方法包括分解有机物,中和所得溶液,添加1,5-二苯基硫代卡巴唑酮溶液,提取用氯仿包裹的锌络合物,并在538 nm波长下测量提取物的吸光度。
The method consists in decomposing of organic matter, neutralizing of the solution obtained, adding of 1,5-diphenylthiocabazone solution, extracting of the zinc complex thus furmed with chloroform and measuring of the absorbance of the extract at a wavelength of 538 nm.
标准预览图


