Low energy induced homolytic fragmentation of flavonol 3‐ O ‐glycosides by negative electrospray ionization tandem mass spectrometry

The low-energy CID homolytic fragmentation was diagnostic for structural identification of flavonol 3-O-glycosides. We have summarized key factors affecting this fragmentation. The results could be useful for rapid characterization of flavonoid O-glycosides in complicated herbal extracts.