In this thesis, high performance liquid chromatography (HPLC) was applied to determine the contents of active components and to establish its chromatographic fingerprint in Traditional Chinese Medicine (TCM) by electrochemical detector (ECD) and diode array detector (DAD). Those studies are very important to control the quality of TCM, and can offer a basis for the Good Agricultural Practice (GAP) management. This thesis consisted of five chapters, and the author's contributions are in the following four as...