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Authors
Pires, WesleyGhosh, Santunu
Nixon, Kate
Neves, Rafael
Duque, Humberto
Amorim, R.A.A.
Jones, Darryl
Blanco, Francisco
Garcia, Gustavo
Brunger, Michael
Lopes, Cristina
Issue Date
2017-08-24
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Experimental 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 100eV. 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.Citation
(2017) 'Electron impact ionization of 1-propanol', International Journal of Mass Spectrometry, 422, pp. 32-41Publisher
ElsevierJournal
International Journal of Mass SpectrometryAdditional Links
http://www.sciencedirect.com/science/journal/13873806?sdc=1Type
Journal articleLanguage
enISSN
1387-3806Sponsors
CNPqae974a485f413a2113503eed53cd6c53
10.1016/j.ijms.2017.08.005
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