Results The average recovery of Dracaena s major components reached 80% after precipitated by acetonitrile first and then extracted by ethyl acetate.

 
  • 结果通过乙腈沉淀蛋白,采用乙酸乙酯进行提取,可使含药血清中龙血竭特征成分的提取率达到80%25以上。
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