Abstract
The electron capture mass spectrometric response of pentafluorobenzoyl ester derivatives of platelet-activating factor alkyl chain homologs has been found to be inversely proportional to their alkyl chain length. This phenomenon was observed when either the gas chromatograph or direct insertion probe was utilized for sample introduction. A similar differential response was also obtained for a series of fatty alcohols, analyzed as pentafluorobenzoyl esters. These studies demonstrate that multiple standard curves must be prepared for analysis of platelet-activating factor and related lipids in order to obtain accurate quantification.
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