Fig. 2
Total ion chromatograms of different samples in negative ion mode. Total ion chromatograms of different samples were analyzed by HPLC–DAD-Q-TOF–MS/MS. a RGE, b cell disruption, c reference substances, d control sample, e final-wash eluate. 3 Rg1, 5 Rf, 13 Rd, 17 20(S)-Rg3, 18 20(R)-Rg3