Direct emission of molecular fragments during the sputtering of poly(4-hydroxystyrene) and determination of ion structures using tandem secondary ion mass spectrometry

Structural characterization of flavonol

Structural characterization of flavonol 3,7-di-O-glycosides and determination of the glycosylation position by using negative ion electrospray ionization tandem mass spectrometry

✍ Keyume Ablajan; Zeper Abliz; Xiao-Ya Shang; Jiu-Ming He; Rui-Ping Zhang; Jian-Go 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 423 KB 👁 1 views

## Abstract Flavonol 3,7‐di‐__O__‐glycosides were investigated by negative ion electrospray ionization tandem mass spectrometry using a quadrupole linear ion trap (LIT) mass spectrometer. The results indicate that the fragmentation behavior of flavonol 3,7‐di‐__O__‐glycosides is substantially diffe