Structural analysis of glycopeptide using a novel tandem time-of-flight mass spectrometer with a spiral ion trajectory 'MALDI-SpiralTOF/TOF'

摘要

1. High mas resolution in the MS1 can provide easy monoisotopic peak selection around m/z 3000. 2. Elimination of product ions via PSD process provide characteristic (real) high-energy CID product ion spectra. 3. Compared to reported low-energy product ion spectra, cross-ring cleavage ion were mainly observed, and not observed loss of fucose residue.