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Collisional activation mass spectra of M-. ions of azo dyes containing 2-naphthol (1989)

Brumley, W. C. ; Brilis, G. M. ; Calvey, R. J. ; [weitere]

Chichester : Wiley-Blackwell

Biological Mass Spectrometry 18 (1989), S. 394-400

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Details

ISSN: 0887-6134

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: 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]-.. Ion 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 axo dyes. Specific results are reported for the chloroform extract of FD&C Red #8, and capillary gas chromatographic introduction is compared with direct exposure probe introduction for the identification of dyes.

Zusätzliches Material: 4 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/bms.1200180606

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