benzin soap
... 石油醚 benzin 石油醚皂 benzin soap 石油醚 benzine ...
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方法：采用60%乙醇提取、石油醚去除脂溶性成分、水饱和正丁醇萃取法提取六月青皂苷。
Methods: The LYQ was extracted with the 60% ethanol, liposoluble impurity was removed by petroleum ether, then extracted by water-saturated butanol.
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