METHODS Radix astragli,rhizome polygonati,and radix rehmanniae were identified by TLC and the content of astragaloside in Jiangtangjia capsules was determined by TLC-scanning.

• 方法采用薄层色谱法对处方中的黄芪、黄精、地黄进行鉴别;同时采用薄层扫描法测定黄芪甲苷的含量。