METHODS HPLC was used to determine the dissolution rate of Yanshuangsan powder before and after super fine crushing with Indigo and glycyrrhizicacid as index.
方法：以靛蓝和甘草酸溶出量为指标，采用高效液相色谱法分别对超微粉碎前后咽爽散溶出量进行测定。
2
Objective To compare diffenrent amounts of the glycyrrhizicacid extracted by two methods-decoct method and Ammonia-water method.
目的比较水酸法和氨水法提取甘草酸含量的变化。
3
Objective: To determine the glycyrrhizicacid in the Shugan capsules.