SPONTANEOUS DESORPTION - DEPENDENCE OF THE DESORPTION RATE ON THE GRID PARAMETERS

Authors
SCHOPPMANN C VOIT H
Citation
C. Schoppmann et H. Voit, SPONTANEOUS DESORPTION - DEPENDENCE OF THE DESORPTION RATE ON THE GRID PARAMETERS, Rapid communications in mass spectrometry, 7(6), 1993, pp. 446-448
Citations number
6
Categorie Soggetti
Spectroscopy,"Chemistry Analytical
Journal title
Rapid communications in mass spectrometry → ACNP
ISSN journal
09514198
Volume
7
Issue
6
Year of publication
1993
Pages
446 - 448
Database
ISI
SICI code
0951-4198(1993)7:6<446:SD-DOT>2.0.ZU;2-5
Abstract
The desorption rate for 'spontaneous desorption' (SD) has been investi gated using various grids with different geometrical dimensions (line width, line distance). The experimental results can be understood if o ne assumes that the keV ions which sputter ions from the sample in an SD process originate exclusively at the grid via field-enhanced desorp tion of adsorbates (FEDA). This means that SD is a two-step process. T he first step is FEDA, the second step is a sputter process.