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. 2012 Oct 17;7(10):e46914. doi: 10.1371/journal.pone.0046914

Figure 2. Electrospray mass spectrometric detection (QTrap system) of genistein-O-monohexosides formed by C. elegans.

Figure 2

(A) Total ion chromatogram (TIC) of the enhanced product ion (EPI) scan of the m/z 431 precursor showing four genistein-O-monohexoside metabolites. The two major ones are named M10 and M11; two additional minor metabolites are marked as M8 and M9. (B) MS/MS spectrum of the standard compound genistein-7-O-ß-D-glucoside. (C) MS/MS spectrum of metabolite M10, identified as genistein-7-O-ß-D-glucoside using the corresponding standard compound. (D) Proposed structures of the fragment ions observed in the MS/MS spectra shown under (B) and (C).