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Figure 5 | Plant Methods

Figure 5

From: Simultaneous molecular formula determinations of natural compounds in a plant extract using 15 T Fourier transform ion cyclotron resonance mass spectrometry

Figure 5

CID MS/MS spectra of the three extract compounds and three commercial ginsenosides. The compound (m/z 947.6) at 20.5 min (A), the compound (m/z 801.6) at 24.7 min (B), the compound (m/z 1,079.6) at 26.3 min (C), and the ginsenosides Re (947.6 amu) (D), Rf (801.5 amu) (E), and Rc (1079.6 amu) (F). The parent ion is labeled with a diamond. Note that the peaks at m/z 354.4 and 702.5 were electrical noise. Fragment peaks are annotated using reported rules[23]. The superscripts 2 and 6 denote the attachment position of the terminal sugar molecule. Glc = β-d-glucose, C6H12O6, 180 amu; Ara(f) = α-l-arabinofuranose, C5H10O5, 150 amu; Rha = α-l-rhamnose, C6H12O5, 164 amu.

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