Figure 2From: Simultaneous molecular formula determinations of natural compounds in a plant extract using 15 T Fourier transform ion cyclotron resonance mass spectrometryUHR MS spectrum of ginseng extract. (A) The UHR mass spectrum of ginseng extract obtained by a 15 T FT-ICR mass spectrometer. (B) The zoomed spectrum shows that the resolution was sufficient to resolve all peaks within a 1-amu span. The molecular formulae determined by IFS are listed in the side table.Back to article page