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抽滤抽不动怎么办
更新时间: 2020-07-12 00:00:00  

滤膜选择不对或者一次性滤膜选择孔筛过小,可以尝试如下操作,1、根据溶剂极性选择不同的膜有机相的还是水相的;2、如果膜没选错,可以尝试下梯度过滤,先尝试大孔径的膜再梯度减小直至符合你要求的,然后做下试验,选择最快的梯度,确保时间。

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