Fig. 1

UPLC-TOF–MS results in positive ion mode. A TIC in positive ion mode. The MS/MS spectra of the 5 compounds identified in Fushenmu, B adenosine (the retention time was 0.602 min, 268.1046 m/z → 136.0638 m/z), C 2-methoxycinnamic acid (the retention time was 6.691 min, 179.0723 m/z → 146.0366 m/z), D pinocembrin (the retention time was 17.149 min, 257.0840 m/z → 153.0219 m/z), E vitamin A acid (the retention time was 20.184 min,301.2192 m/z → 133.1049 m/z), F pachymic acid (the retention time was 33.108 min, 529 m/z → 511 m/z)