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采用苯提取，用薄层展开，薄层扫描法测定延胡索乙素的含量，取得了满意的结果，方法灵敏，准确，可作为该制剂的质量控制方法。
The content of tetrahydropalmatine was determined by benzene extraction, thin layer deployment and thin layer scanning. The results were satisfactory. The method was sensitive and accurate and could be used as a quality control method for the preparation.