Formation of the bisulfite anion (HSO3–, m/z 81) upon collision??induced dissociation of anions derived from organic sulfonic acids

FB Jariwala, RE Wood, U Nishshanka…

Index: Jariwala, Freneil B.; Wood, Ryan E.; Nishshanka, Upul; Attygalle, Athula B. Journal of Mass Spectrometry, 2012 , vol. 47, # 4 p. 529 - 538

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Citation Number: 5

Abstract

In the negative-ion collision-induced dissociation mass spectra of most organic sulfonates, the base peak is observed at m/z 80 for the sulfur trioxide radical anion (SO3–Á). In contrast, the product-ion spectra of a few sulfonates, such as cysteic acid, aminomethanesulfonate, and 2-phenylethanesulfonate, show the base peak at m/z 81 for the bisulfite anion (HSO3–). An investigation with an extensive variety of sulfonates revealed that the presence of a ...