NDLI: Characterisation of Flavonoid Aglycones by Negative Ion Chip-Based Nanospray Tandem Mass Spectrometry

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Characterisation of Flavonoid Aglycones by Negative Ion Chip-Based Nanospray Tandem Mass Spectrometry

Content Provider	PubMed Central
Author	Gates, Paul J. Lopes, Norberto P.
Copyright Year	2012
Abstract	Flavonoids are one of the most important classes of natural products having a wide variety of biological activities. There is wide interest in a range of medical and dietary applications, and having a rapid, reliable method for structural elucidation is essential. In this study a range of flavonoid standards are investigated by chip-based negative ion nanospray mass spectrometry. It was found that the different classes of flavonoid studied have a combination of distinct neutral losses from the precursor ion [M-H]− along with characteristic low-mass ions. By looking only for this distinct pattern of product ions, it is possible to determine the class of flavonoid directly. This methodology is tested here by the analysis of a green tea extract, where the expected flavonoids were readily identified, along with quercetin, which is shown to be present at only about 2% of the most intense ion in the spectrum.
Related Links	http://dx.doi.org/10.1155/2012/259217
Starting Page	259217
File Format	PDF
ISSN	16878760
e-ISSN	16878779
Journal	International Journal of Analytical Chemistry
Volume Number	2012
Language	English
Publisher	Hindawi Publishing Corporation
Publisher Date	2012-01-01
Access Restriction	Open
Rights Holder	Hindawi Publishing Corporation
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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