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Field ionization mass spectrometry—I. Nucleosides
Author(s) -
Brown Peter,
Pettit George R.,
Robins Roland K.
Publication year - 1969
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.1210020506
Subject(s) - electron ionization , ionization , mass spectrum , chemistry , field desorption , ion , mass spectrometry , analytical chemistry (journal) , spectral line , cleavage (geology) , polyatomic ion , guanosine , chromatography , materials science , organic chemistry , physics , biochemistry , astronomy , fracture (geology) , composite material
The field ionization mass spectra of a series of nucleosides are reported, and compared with spectra obtained by conventional electron‐impact ionization. The latter are complex, with structurally significant molecular ion and sugar cleavage peaks often of low intensity or completely absent. In contrast, the field ion spectra are extremely simple, with all except guanosine (highest mass peak [M — 18]) showing intense molecular ion peaks, and the characteristic sugar (S) and base (B + H) cleavage products as the only other important fragments.