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The role of the field in field desorption fragmentation of polyethylene glycol
Author(s) -
McCrae Christine E.,
Derrick Peter J.
Publication year - 1983
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210180802
Subject(s) - desorption , fragmentation (computing) , polyethylene glycol , dissociation (chemistry) , electric field , materials science , polyethylene , ion , common emitter , chemistry , analytical chemistry (journal) , adsorption , physics , chromatography , optoelectronics , organic chemistry , composite material , quantum mechanics , computer science , operating system
The degree of fragmentation induced during field desorption of polyethylene glycol increases as the potential between emitter and cathode is raised. This fragmentation is explained as field dissociation. The shape of the envelope of pseudomolecular ion peaks depends upon temperature but not upon field. It is suggested that the desorption of pseudomolecular ions proceeds over barriers whose heights are dependent upon the electric field strength.