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Electron impact ionization of 1-propanol

AutorPires, W. A. D.; Nixon, K. L.; Ghosh, S.; Neves, R.F.C.; Duque, H. V.; Amorim, R. A. A.; Jones, D. B.; Blanco, F.; García, Gustavo ; Brunger, M. J.; Lopes, M. C. A.
Palabras clave1-propanol
Mass spectra
Appearance energies
Partial ionization cross section
Fecha de publicación24-ago-2017
EditorElsevier
CitaciónInternational Journal of Mass Spectrometry 422: 32-41 (2017)
ResumenExperimental measurements of the cations created in electron impact ionization have been undertaken for the primary isomer of propanol using a Hidden Quadrupole Mass Spectrometer (EPIC 300), with a mass resolution of 1 amu. The mass spectra recorded at an incident electron energy of 70 eV reveals the relative probability of forming 50 different cations, by either direct ionization or dissociative ionization. Individual partial ionization cross sections (PICS) for 31 different cations were measured for the first time in this work, for the incident electron energy range from 10 to 100 eV. Also, appearance energies (AEs) and Wannier exponents for the 16 most intense cations formed in electron collisions with 1-propanol are reported. Where possible, those results are compared to those from an earlier investigation. Total Ionization Cross Sections (TICS) were also obtained from the sum of the measured PICS, for nearly all cations measured, and are compared to relevant data reported in the literature. In addition, as a part of this study, theoretical TICS were calculated using the Binary-encounter Bethe (BEB) and independent atom model with screening corrected additivity rule (IAM–SCAR) methods. Good agreement between current measured and calculated TICSs and corresponding earlier results was typically found.
Descripción10 pags., 5 figs., 3 tabs.
Versión del editorhttps://doi.org/10.1016/j.ijms.2017.08.005
URIhttp://hdl.handle.net/10261/164162
Identificadoresdoi: 10.1016/j.ijms.2017.08.005
issn: 1387-3806
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