Title
Influence of ion energy-distributions and matrix effects on spark source-mass spectrometric analysis Influence of ion energy-distributions and matrix effects on spark source-mass spectrometric analysis
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Amsterdam ,
Subject
Chemistry
Source (journal)
International journal of mass spectrometry and ion processes. - Amsterdam
Volume/pages
51(1983) :1 , p. 63-76
ISSN
0168-1176
ISI
A1983QV48400008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The energy distributions of ions produced in a spark source mass spectrometer were recorded for different trace element ions and for the total ion current. Both electrodes of pure doped graphite, and with 10% potassium salts added, were examined. The results show that the measured energy of an ion is mainly determined by the m/z ratio and that the energy of the total ion current depends on the sample composition. It was also clear that if the accelerating voltage is set to obtain maximum transmission of the total ion current, the fraction of the heavy elements that is discriminated at the β-slit depends on the matrix composition if the pass band of the instrument is narrow. These effects influence considerably the accuracy in the analysis of variable samples.
E-info
https://repository.uantwerpen.be/docman/iruaauth/f08f66/9146550.pdf
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