Fig. 1

Main components of Baihe Zhimu formula and Anemarrhena asphodeloides extract. a Thirty-nine compounds were identified in Baihe Zhimu (BZ) formula by HPLC-MS/MS in negative ion mode, as shown in Table 2. b Thirty compounds were identified in A. asphodeloides by HPLC-MS/MS, as shown in Table 3. The fingerprints of the main components in A. asphodeloides were analyzed by c HPLC-UV and (d) HPLC-ELSD