The main results of this dissertation were described as following:The roots of C. auriculatum was extracted by ethanol through heating reflux, then purified by chemical extraction.

主要研究结果如下：采用加热回流提取法，对白首乌进行乙醇提取，并通过化学萃取得到总甾苷。

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As cosolvent alcohol was added, the amount of extraction of the praeruptorin A increased, and the amount of SFECO2 extraction was higher than those of decoction and heating reflux.

加入夹带剂乙醇后白花前胡甲素提取量增加，且超临界流体萃取法明显高于水煎煮和加热回流法。

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