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Electron impact fragmentation of carbofuran and its major photolytic transformation metabolites
Author(s) -
Hong Jongki,
Shin ChulMin,
Kim Young Hwan,
Yoo Jong Shin
Publication year - 1999
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/(sici)1097-0231(19990315)13:5<354::aid-rcm491>3.0.co;2-g
Subject(s) - chemistry , fragmentation (computing) , electron ionization , carbofuran , dissociation (chemistry) , collision induced dissociation , mass spectrum , mass spectrometry , ion , analytical chemistry (journal) , computational chemistry , tandem mass spectrometry , chromatography , organic chemistry , ionization , pesticide , computer science , agronomy , biology , operating system
Abstract Mass spectra of carbofuran and its major photo‐induced metabolites, 3‐hydroxycarbo‐furan, 3‐oxocarbofuran and their corresponding phenols, were investigated using electron impact mass spectrometry. Interpretation of the fragmentation pathways, based on the mass spectra, enables structural elucidation and chemical identification of these compounds. The proposed fragmentation pathways and ion structures were verified by exact mass measurements and collision‐induced dissociation, wing B/E‐linked scanning. The presence of the m/z 137 ion and its B/E‐linked scan mass spectrum is unique for 3‐hydroxycarbofuran, 3‐oxocarbofuran and their corresponding phenols. Thus, this ion can be used to detect the oxidation products at the C3 position of carbofuran. Copyright © 1999 John Wiley & Sons, Ltd.