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Attachment of neutrals during tandem mass spectrometry of sulfonic acid dyes andintermediates in an ion trap

✍ Scribed by Adrian Weisz; Denis Andrzejewski; Henry M. Fales; Asher Mandelbaum

Book ID
102383110
Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
185 KB
Volume
37
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

Several positional isomers of 2‐(2‐quinolinyl)‐1__H__‐indene‐1,3(2__H__)‐dione mono‐ and disulfonic acids prepared as reference materials for development of analytical methods involved in FDA certification of D&C Yellow No. 10 (Quinoline Yellow) were found consistently to show [MH + 14]^+^ ions when their electrospray‐ or atmospheric pressure chemical ionization‐prepared MH^+^ ions were subjected to collisional activation. The source of these ions was found to be the methanol used as solvent in these procedures which combined with their [MH − H~2~O]^+^ ions under chemical ionization conditions. The reaction was found to be sensitive to their isomeric and chemical structures and other examples of this process are reviewed. Copyright © 2002 John Wiley & Sons, Ltd.

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