青梅感冒冲剂中的岗梅和甘草的薄层色谱鉴别

TLC identification of radix glycyrrhizae and ilex asprella in QinMei Cold Granule

目的:研究青梅感冒冲剂中岗梅、甘草的薄层色谱鉴别方法。方法:分别取甘草药材、岗梅药材、青梅感冒冲剂及阴性制剂的乙酸乙酯提取液,在硅胶板上前者以ψ(苯:乙酸乙酯:水)=5:2:0.1展开,后者以ψ(甲苯:乙酸乙酯:水)=5:2:0.1展开,在紫外灯(365 nm 下)检视。结果:在两者供试品色谱中与各自对照药材色谱相应位置上,均有相同的特征斑点,阴性制剂色谱图中无此斑点。结论:该法专属性强,为该制剂增加质量控制指标提供了实验依据。

To study the TLC identification of liquorice ( radix glycyrrhizae) ( RG) and ilex asprella ( IA) in QinMei Cold Granule. Methods; The extracts of RG, IA and its preparation were subjected to TLC in different development systems. ψ( Benzene: acetic ether : water) = 5 : 2 : 0.1 and ψ ( toluene: acetic ether: water) = 6 : 2 :0.1 were used as development reagents for RG and IA respectively. Results; Special spots could be observed at 365 nm on positions corresponding to RG, IA and the preparation respectively, while the negative control showed no spots. Conclusion:This method is highly exclusive and can be used in the quality control of the preparation.