Development and Validation of Ultrahigh-Performance Liquid Chromatography Coupled with Triple Quadrupole Mass Spectrometry Method for Quantitative Determination of Ten Active Compounds in Ge-Gen-Jiao-Tai-Wan

Figure 3

Product ion mass spectra of [M + H]+ ions of puerarin, daidzin, coptisine, epiberberine, jatrorrhizine, berberine, palmatine, coumarin, and daidzein; [M-H]- ions of cinnamic acid.

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