Record Display for the EPA National Library Catalog

RECORD NUMBER: 14 OF 104

OLS Field Name OLS Field Data
Main Title Electron Impact Mass Spectrometry of BHT and Its Alteration Products.
Author Brumley, W. C. ; Warner, C. R. ; Daniels, D. H. ; Varner, S. ; Sphon, J. A. ;
CORP Author Environmental Monitoring Systems Lab., Las Vegas, NV. ;Food and Drug Administration, Washington, DC. Center for Food Safety and Applied Nutrition.
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/030;
Stock Number PB90-100991
Additional Subjects Mass spectra ; Phenols ; Food deterioration ; Pyrolysis ; Gas chromatography ; Electron irradiation ; Reprints ; Food additives
Holdings
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Status
NTIS  PB90-100991 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/10/1990
Collation 13p
Abstract
The electron impact (EI) mass spectra of 2,6-di-tert-butyl-4-methylphenol (BHT) and certain of its alteration products are described in detail. Accurate mass measurements confirm the element compositions of important fragment ions in the EI spectra. Collisionally activated mass spectra are also used to study fragmentation and suggest common ion structures. The reference spectra provide the basis for identifying various alteration products of BHT by capillary gas chromatograph/mass spectrometry (GC/MS) without the necessity of isolating individual components. Application of GC/MS is made to three studies: pyrolysis of hydroperoxy-BHT as a potential pathway to alteration products in food; GC/MS pyrolysis of hydroperoxy-BHT as a model study; and alteration of BHT in ethanol/water as food-simulating solvent. (Copyright (c) 1989 by John Wiley & Sons. Ltd.)