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Evidence for distinction of cis and trans isomers of mono‐unsaturated fatty acids by fast‐atom bombardment tandem mass spectrometric analysis
Author(s) -
Jensen Nancy,
Lam Kai,
Cody Robert B.,
Tamura Jun
Publication year - 1990
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290040703
Subject(s) - chemistry , fragmentation (computing) , fast atom bombardment , tandem , tandem mass spectrometry , mass spectrometry , ion , allylic rearrangement , collision induced dissociation , cis–trans isomerism , double bond , stereochemistry , medicinal chemistry , analytical chemistry (journal) , organic chemistry , chromatography , catalysis , materials science , computer science , composite material , operating system
Abstract Fast‐atom bombardment tandem mass spectrometry negative‐ion analysis of the [MH] − ions of the cis and trans isomer pairs of 9‐hexadecenoic and 9‐octadecenoic acid with a four sector mass spectrometer, reveals distinctions between the cis and trans isomers of each pair. The definitive fragmentation is at the bond allylic to the double bond in the distal position on the chain. Fragmentation at this site involves both remote‐charge‐site fragmentation and a cleavage fragmentation.