Differentiation of 1-O-alk-1'-enyl-2-acyl and 1-O-alkyl-2-acyl glycerophospholipids by multiple-stage linear ion-trap mass spectrometry with electrospray ionization.

Abstract

We described linear ion-trap mass spectrometric approaches applying MS(3) and MS(4) toward to the structural characterization of 1-O-alk-1'-enyl-2-acyl-, 1-O-alkyl-2-acyl-, and diacyl-glycerophospholipids (GPL) as the [M - H](-) ions desorbed by ESI in negative-ion mode. Further dissociation of the [lM - H - R(2)CO(2)H - polar head group](-) ions from the… (More)

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