治咳枇杷露的质量标准研究

Study on the quality standard of Zhikepipa Mixture

目的：对治咳枇杷露的质量标准进行研究，提高质量控制水平。方法采用薄层色谱法对枇杷叶、薄荷脑、桔梗进行鉴别，采用气相色谱法测定薄荷脑的含量。结果枇杷叶、薄荷脑、桔梗的薄层色谱斑点清晰，分离度好，专属性强，阴性无干扰；薄荷脑的线性范围为0．4008～2．4050μg（r＝0．9999），平均加样回收率为99．4％（n＝6），RSD＝0．19％。结论优化后的质量标准方法易行、准确可靠，可用于治咳枇杷露的质量控制。

Objective To study the quality standard of Zhikepipa Mixture and improve the quality control level.Methods Folium erio-botryae,menthol and radix platycodonis in Zhikepipa Mixture were identified by TLC.The content of menthol was determined by GC. Results TLC spots were clear with high resolution and strong specialization and the negative control showed no interference.The linear range of menthol was 0.400 8~2.405 0μg （r=0.999 9） and the average recovery was 99.4 %with RSD of 0.19%（n=6）.Con-clusion The improved quality standard is simple,accurate and can be used for the quality control of Zhikepipa Mixture.