METHODS: Adopting a TLC method to detect the quality of emodin in the extraction.

方法：采用TLC法测定大黄膏中大黄素含量。

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Method: TLC was used to test Radix Ophzopogonis and Flos Lonicerae, and assaying the alcohol extraction, as well as the granule stability.

方法：用薄层色谱鉴别颗粒剂中的麦冬、 金银花，测定醇性浸出物，并考察本品的稳定性。

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Methods:Adopting TLC method to determine the quality of emodin in the raw Rhubarb, Rhubarb processed and their granules of extraction.

方法：采用TL C法测定生大黄、熟大黄及其免煎颗粒中大黄素含量。

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