Methods: With the transferring rate of tetramethylpyrazine as index, the optimum extraction condition for the first time was selected by uniform test, and the times of extraction was studied.

• 方法:以川芎嗪提取转移率为指标,先采用均匀试验法优选川芎第1次乙醇提的工艺条件,然后考察提取次数对提取效果的影响。