title: Overtone mobility spectrometry: part 3. On the origin of peaks.
abstract: The origin of non-integer overtone peaks in overtone mobility spectrometry (OMS) spectra is investigated by ion trajectory simulations. Simulations indicate that these OMS features arise from higher-order overtone series. An empirically-derived formula is presented as a means of describing the positions of peaks. The new equation makes it possible to determine collision cross sections from any OMS peak. Additionally, it is extended as a means of predicting the resolving power for any peak in an OMS distribution.
authors.affiliation: Department of Chemistry, Indiana University, Bloomington, IN 47405, USA.
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Valentine
authors.forename: Ruwan T
authors.initials: RT
authors.lastname: Kurulugama
authors.forename: David E
authors.initials: DE
authors.lastname: Clemmer
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D013058:Mass Spectrometry / Q000379:methods*; D008956:Models, Chemical; D011887:Raffinose / Q000737:chemistry
chemical_list: D011887:Raffinose