Abstract: Comparative experiment of decocting method with infiltration in extracting effective component from banlangen was conducted by TLC. The old method was improved to increase the extraction rate of indirubin.

Key words: banlangen, indirubin, indigo

摘要： 采用薄层色谱分析比较了水煎法和渗漉法对板蓝根有效成分——靛玉红的提取效果,并对以前的提取方法做了改进,提高了靛玉红的提取效率。

关键词: 板蓝根, 靛玉红, 靛蓝