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Negative ion electrospray high‐resolution tandem mass spectrometry of polyphenols
Author(s) -
Schmidt Jürgen
Publication year - 2016
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.3712
Subject(s) - chemistry , flavones , tandem mass spectrometry , flavonols , orbitrap , fragmentation (computing) , electrospray , mass spectrometry , polyphenol , mass spectrum , chromatography , analytical chemistry (journal) , organic chemistry , computer science , antioxidant , operating system
Representative compounds with a 1,3‐dihydroxybenzene substructure belonging to different important polyphenol classes (stilbenes, flavones, isoflavones, flavonols, flavanones, flavanols, phloroglucinols, anthraquinones and bisanthraquinones) were investigated based on detailed high‐resolution tandem mass spectrometry measurements with an Orbitrap system under negative ion electrospray conditions. The mass spectral behaviour of these compound classes was compared among each other not only with respect to previously described losses of CO, CH 2 CO and C 3 O 2 but also concerning the loss of CO 2 and successive specific fragmentations. Furthermore, some unusual fragmentations such as the loss of a methyl radical during mass spectral decomposition are discussed. The obtained results demonstrate both similarities and differences in their mass spectral fragmentation under MS n conditions, allowing a characterization of the corresponding compound type. Copyright © 2015 John Wiley & Sons, Ltd.