ISO 6866-1985 动物饲料 游离棉酚和总棉酚的测定

标准号：ISO 6866-1985
中文标准名称：动物饲料 游离棉酚和总棉酚的测定
英文标准名称：Animal feeding stuffs; Determination of free and total gossypol
标准类型：B46
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：B46
国际标准分类号：65.120
适用范围：The method is applicable to cottonseed and cottonseed meals and cakes. The method consists in extracting of the compound in the presence of 3-aminopropane-1-ol, either with a mexture of 2-propanol and hexane for the determination of free gossypol or with dimethylformamide for the determination of total gossypol. Conversion to gossypol-dianiline using aniline, and measurement of the absorbance at the wavelength of maximum absorbance (between 435 and 445 nm).