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Abstract
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 ̊A2 at 70eV 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.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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EUROPEAN PHYSICAL JOURNAL D
no. 72,
pages 1 - 6,
ISSN: 1434-6060 - Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Zawadzki M.: Electron-impact ionization cross section of formic acid// EUROPEAN PHYSICAL JOURNAL D. -Vol. 72, iss. 12 (2018), s.1-6
- DOI:
- Digital Object Identifier (open in new tab) 10.1140/epjd/e2017-80540-8
- Verified by:
- Gdańsk University of Technology
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