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Electron-impact ionization cross section of formic acid
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SYSNO ASEP 0492266 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Electron-impact ionization cross section of formic acid Author(s) Zawadzki, Mateusz (UFCH-W) Article number 12 Source Title European Physical Journal D. - : Springer - ISSN 1434-6060
Roč. 72, JAN 2018 (2018)Number of pages 6 s. Language eng - English Country DE - Germany Keywords electron-impact ionization ; photoionization ; scattering Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects GJ16-10995Y GA ČR - Czech Science Foundation (CSF) GA17-04844S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UFCH-W - RVO:61388955 UT WOS 000423163600002 EID SCOPUS 85040932475 DOI 10.1140/epjd/e2017-80540-8 Annotation Experimental electron-impact ionization cross sections of one of the simplest carboxylic acids, formic acid, are presented. The molecular target was studied in two independent experimental setups applying different methods: the total ion collection and the electron–impact mass spectrometry methods. Experimental data were taken at incident electron energies ranging from ionization threshold [11.31 eV, J.C. Traeger, Int. J. Mass Spectrom. Ion Process. 66, 271 (1985)] to 76 eV using a total cross section of 4.0 Å2 at 70 eV for the total ion collection method. In the spectrometric method the four main cations COH+, HCOOH+, COOH+ and CO+ are found to contribute to about 97% of the total ionization cross section. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2019
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