Figure 2.
MSn spectra of tangshenoside I, lobetyolin, and salvianolic acid B. (A) MS2 of 667; (B) MS3 of 261; (C) MS2 of 441; (D) MS2 of 717; (E) MS3 of 519; (F) MS4 of 321; (G) MS5 of 279.
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