Electron impact ionization of the gas-phase sorbitol*
Institute of Electron Physics, Ukrainian National Academy of
Sciences, 21 Universitetska
Received: 29 August 2014
Received in final form: 29 December 2014
Published online: 19 March 2015
Ionization and dissociative ionization of the sorbitol molecule by electron impact have been studied using two different experimental methods. In the mass range of m/z = 10–190, the mass spectra of sorbitol were recorded at the ionizing electron energies of 70 and 30 eV. The ion yield curves for the fragment ions have been analyzed and the appearance energies of these ions have been determined. The relative total ionization cross section of the sorbitol molecule was measured using monoenergetic electron beam. Possible fragmentation pathways for the sorbitol molecule were proposed.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2015