Rapid Communications in Mass Spectrometry 2006-01-01

Amino-catalyzed fragmentation characteristics of polyamides containing N-methylpyrrole and N-methylimidazole by electrospray negative ionization mass spectrometry.

Mingyu Niu, Shuxia Cao, Yong Ye, Zhen Zhang, Yufen Zhao

Index: Rapid Commun. Mass Spectrom. 20(7) , 1077-81, (2006)

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Abstract

Different negative fragmentations of synthesized polyamides containing N-methylpyrrole and N-methylimidazole were analyzed by electrospray ionization tandem mass spectrometry with low-energy collision-induced dissociation. An interesting rearrangement derived from amino catalysis of N-methylimidazole was observed. The observation is useful for the study of the correlations between the sequences of polyamides and their mass fragmentation pathways.Copyright 2006 John Wiley & Sons, Ltd.