1·Method :Platycodon grandiflorum, Aster tataricus L. f, Radix stemonae in were identified by TLC.
方法：采用薄层色谱法对制剂中桔梗、紫菀、百部分别进行定性鉴别。
2·Results:Platycodon grandiflorum, Aster tataricus L. f, Radix stemonae in could be identified by TLC.
结果：在薄层色谱中均能检出桔梗、紫菀、百部。
3·HPLC was used to determine protostemonine content in Radix Stemonae and the optimum condition was chosen.
结果分离得到原百部碱化学单体作为含量测定对照品。