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化学药品的等级GR，AR和ACS等级的药品有什么区别？哪个更好 2021/12/22 · 推荐答案： JOE HUI 回复于2021/12/20. 优级纯GR相对而言好些，AR与ACS差不多，具体可以参考如下资料: 国产化学试剂一般是按杂质含量的多少而分成四个级别：. 一、LR试剂 ：. Laboratory reagent ，实验级试剂，为四级试剂，简写为LR。. 二、CP试剂 Ghost Peaks in Gradient HPLC – Crawford Scientific In these days when reagents are prepared to volumetric or gravimetric ‘recipes’ this may be more practical. Organic solvents – there is a ...

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