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  • Title: Fragmentation study of a 8-C-glycosyl isoflavone, puerarin, using electrospray ion trap time-of-flight mass spectrometry at high resolution.
    Author: Li H, Wan L, Hashi Y, Chen S.
    Journal: Rapid Commun Mass Spectrom; 2007; 21(15):2497-504. PubMed ID: 17610215.
    Abstract:
    A mass spectrometry method that combines electrospray with an ion trap time-of-flight mass analyzer has been used to characterize puerarin (7,4'-dihydroxyisoflavone-8-C-beta-D-glucoside). MS(n) spectra (n <or= 6) were obtained in positive and negative ion mode. The combination of accurate mass measurement in MS(2) spectra and sequential MS(n) experiments enabled fragmentation pathways to be elucidated in detail. A novel structure for [M+H-150]+ has been found.
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