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采用两次单向展开的方法将罗红霉素与杂质完全分离,测得其比移值为0.75,从而顺利实现成品药物中罗红霉素的薄层色谱定量测定。
The method of unidirectional unfolding was used to completely separate roxithromycin and impurities and the specific gravity was 0.75. Thus, the TLC determination of roxithromycin in the finished product was successfully achieved.