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Typical UPLC chromatograms of (A) mixed standards and (B) sample. (1) Sodium danshensu, DS; (2) Protocatechuic aldehyde; (3) Caffeic acid, CA; (4) Rosmarinic acid, RA; (5) Salvianolic acid B, Sal B; (6) Salvianolic acid A, Sal A; (7) Dihydrotanshinone I, DT-I; (8) Tanshinone I, TS-I; (9) Cryptotanshinone, CT; (10) Tanshinone IA, TS-IIA.
