The residue from enzyme-based step can be further extracted in the second solvent-based step by selecting proper solvent in order to extract effective component sufficiently.

通过选择适宜溶剂，对一步酶法提取阶段所得渣质进行二步溶剂提取，达到充分提取有效成分的目的。

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METHOD S The effective component was determined by cell membrane chromatography and reversed phase high performance liquid chromatography. The pharmacological actions in vitro were testified.

方法采用柱色谱法分离，反相高效液相色谱法与细胞膜色谱法联用，并结合离体药理实验确定太白花中的有效成分。

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Distilled the effective component from ant by ultrasonic. Studied the content of trace element of ant's distillation and its elimination of hydroxyl radicel.

用超声波法对蚂蚁有效成分进行提取，研究了蚂蚁提取液中微量元素的含量，以及对羟自由基的清除作用。

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