Anal. Chem. 2009, 81, 5876–5880
Treatise on the Measurement of Molecular Masses with Ion Mobility Spectrometry Stephen J. Valentine* and David E. Clemmer* Department of Chemistry, Indiana University, 800 Kirkwood Avenue, Bloomington, Indiana 47405 The ability to separate isotopes by high-resolution ion mobility spectrometry techniques is considered as a direct means for determining mass at ambient pressures. Calculations of peak shapes from the transport equation show that it should be possible to separate isotopes for lowmass ions (
