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RECORD NUMBER: 8 OF 8

Main Title Collisional Activation Mass Spectra of M(1-.) Ions of Azo Dyes Containing 2-Naphthol.
Author Brumley, W. C.; Brilis, G. M.; Calvey, R. J.; 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-89/031;
Stock Number PB90-100983
Subjects Azo dyes; Mass spectroscopy; Gas chromatography; Decomposition; Food additives; Reprints; Ion collisions; Biological effects; 2-Naphthal
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB90-100983 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 11p
Abstract Collisionally activated decomposition mass spectra of M- ions of azo dyes are presented. The compounds are of general structure Ar(1)-N=N-Ar(2), where Ar(1) is substituted phenyl and Ar(2) is 2-naphthol. Characteristic fragment ions observed include m/z 157, which corresponds to the 2-naphthol substituent with cleavage of the -N=N- bond represented as (AR(2) -N)-. Ions of general structure (Ar(1) -NH)- are also observed. Parent ion scans of m/z 157 provide a potential screening technique for 2-naphthol-containing azo dyes. Specific results are reported for the chloroform extract of FD&C Red No.8, and capillary gas chromatographic introduction is compared with direct exposure probe introduction for the identification of dyes. (Copyright 1988 by John Wiley & Sons, Ltd.)
Supplementary Notes Pub. in Biomedical and Environmental Mass Spectrometry, v18 p394-400 1989. Prepared in cooperation with Food and Drug Administration, Washington, DC. Center for Food Safety and Applied Nutrition.
NTIS Title Notes Journal article.
Title Annotations Reprint: Collisional Activation Mass Spectra of M(1-.) Ions of Azo Dyes Containing 2-Naphthol.
Category Codes 99A; 68G
NTIS Prices PC A03/MF A01
Primary Description 600/07
Document Type NT
Control Number 932616698
Cataloging Source NTIS/MT
Origin NTIS
Type CAT


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