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High energy collisional spectroscopy of [RCOO] − anions from negative ion chemical ionization of fatty acid methyl esters
Author(s) -
Bambagiotti A. Massimo,
Coran Silvia A.,
Vincieri Franco F.,
Petrucciani Tiziano,
Traldi Pietro
Publication year - 1986
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.1210210807
Subject(s) - chemistry , mass spectrometry , ion , dissociation (chemistry) , chemical ionization , ionization , mass spectrum , electron ionization , collision induced dissociation , carboxylate , spectroscopy , kinetic energy , analytical chemistry (journal) , organic chemistry , chromatography , tandem mass spectrometry , physics , quantum mechanics
Saturated and mono‐unsaturated fatty acid methyl esters as well as corresponding underivatized acids gave abundant carboxylate anions [RCOO] − under negative ion chemical ionization (OH − and NH 2 − ) and electron attachment conditions. B/E or mass‐analysed ion kinetic energy spectra of fragments arising from high energy collision activated dissociation (CAD) of these [RCOO] − species contained decisive information on the original structure of the neutrals. From an analytical point of view, the method can utilize the gas chromatographic mass spectrometric combination and, in the B/E mode, can be used in practice on any double‐focusing mass spectrometer.