Electron impact fragmentation of carbofuran and its major photolytic transformation aetabolites

Citation
J. Hong et al., Electron impact fragmentation of carbofuran and its major photolytic transformation aetabolites, RAP C MASS, 13(5), 1999, pp. 354-361
Citations number
9
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
ISSN journal
09514198 → ACNP
Volume
13
Issue
5
Year of publication
1999
Pages
354 - 361
Database
ISI
SICI code
0951-4198(1999)13:5<354:EIFOCA>2.0.ZU;2-L
Abstract
Mass spectra of carbofuran and its major photo-induced metabolites, 3-hydro xycarbo-furan, 3-oxocarbofuran and their corresponding phenols, were invest igated using electron impact mass spectrometry, Interpretation of the fragm entation pathways, based on the mass spectra, enables structural elucidatio n and chemical identification of these compounds. The proposed fragmentatio n pathways and ion structures were verified by exact mass measurements and collision-induced dissociation, wing B/E-linked scanning. The presence of t he m/z 137 ion and its B/E-linked scan mass spectrum is unique for 3-hydrox ycarbofuran, 3-oxocarbofuran and their corresponding phenols. Thus, this io n can be used to detect the oxidation products at the C3 position of carbof uran, Copyright (C), 1999 John Wiley & Sons, Ltd.