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彩虹梦

新虫 (初入文坛)

[求助] 化学成分的分离

亲们,我现在要对乙酸乙酯部位分成分,前期用三相系统乙酸乙酯:甲醇:水=10:1:1跑硅胶板,效果还可以,但上硅胶柱,不知道三相系统怎么配比,我是分成分的新手,还望大家多帮忙指点,谢谢
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