Simultaneous Determination of Phenolic Acids, Anthraquinones, Flavonoids, and Triterpenes of Cynomorii Herba in Different Harvest Times by LC-MS/MS

Figure 2

Representative chromatograms of (a) mixed standard solution and (b) the real sample solution of gallic acid (A), protocatechuic acid (B), catechin (C), protocatechuic aldehyde (D), epicatechin (E), ferulic acid (F), rutin (G), epicatechin gallate (H), luteolin-7-glucoside (I), luteolin (J), emodin (K), ursolic acid (L), caffeic acid (M), and astragalin (N).

(a)

(b)