ISO 9648-1988 标准详情
- 标准号:ISO 9648-1988
- 中文标题:高粱 单宁含量的测定
- 英文标题:Sorghum; determination of tannin content
- 标准类别:国际标准化组织标准ISO
- 发布日期:1988-12
The method consists in extraction by shaking with dimethylformamide, then after centrifuging, addition of ferric ammonium citrate and ammonia to an aliqiot part of the supernatant liquid and spectrometric determination, at 525 nm, of the absorbance o
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