Ion Mobility Separation of Deprotonated Oligosaccharide Isomers - Evidence for Gas-phase Charge Migration
Struwe, W. B.*; Baldauf, C.*; Hofmann, J.; Rudd, P. M.; Pagel, K.* – 2016
There has been increasing evidence that certain isomeric glycans can be separated efficiently by ion mobility-mass spectrometry when deprotonated ions are analyzed. To better understand the fundamentals behind these separations, we here investigate the impact of ionisation mode and adduct formation using IM-MS, density-functional theory and ab initio molecular dynamics.