Location of unsaturated positions in phosphatidyl cholines by consecutive-reaction monitoring

Autor:	Duncan Bryant, Robert K. Boyd, Ron Orlando
Rok vydání:	1991
Předmět:	chemistry.chemical_classification Double bond Stereochemistry Organic Chemistry Fatty acid ester Tandem mass spectrometry Medicinal chemistry Analytical Chemistry Ion chemistry.chemical_compound Consecutive reaction chemistry Phosphatidyl Cholines Mass spectrum Carboxylate Spectroscopy
Zdroj:	Rapid Communications in Mass Spectrometry. 5:124-127
ISSN:	1097-0231 0951-4198
DOI:	10.1002/rcm.1290050307
Popis:	Consecutive-reaction monitoring (MS3) of negative ions has been shown to be useful in locating double bonds in the fatty acid ester groups of individual phosphatidyl cholines present in complex mixtures. This information is derived from charge-remote fragmentations of carboxylate anions produced by collisional activation of the [MCH3]− precursor ions from phosphatidyl cholines. The added selectivety of this technique increases the sensitivity, relative to that of tandem mass spectrometry (MS2), such that only 3 pmol are needed to perform this analysis.
Databáze:	OpenAIRE
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