✦ LIBER ✦

Structural characterization of reactive dyes using liquid secondary ion mass spectrometry/tandem mass spectrometry

✍ Scribed by Susan D. Richardson; Alfred D. Thruston Jr; John M. McGuire; Eric J. Weber

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 501 KB
Volume: 28
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210280525

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Reactive Blue 19 (RB 19), its reactive form (RB 19‐VS) and its hydrolyzed form (RB 19‐OH) were examined using liquid secondary ion mass spectrometry/tandem mass spectrometry (LSIMS/MS/MS) in the negative‐ion mode under low‐energy collision conditions (240–300 eV). Structurally characteristic fragment ions were obtained, none of which has been previously reported for these reactive dyes. Among the ions obtained were SO~3~^−^ ions, ions due to central amino cleavage and reactive group cleavage, and ions due to loss of SO~3~ and SO~2~. Possible pathways for the formation of product ions are proposed. The structural information obtained should help to characterize and identify reactive dyes better.

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