Commonly occurring product ions for PA(37:0/20:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
997.8570Precursor ion [M-H]-
703.5647Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
685.5542Neutral loss of sn2 RCOOH group from [M-H]-
549.5616sn1 RCOO- ion
465.2987Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
447.2881Neutral loss of sn1 RCOOH group from [M-H]-
311.2956sn2 RCOO- ion
171.0064Glycerol-3-phosphate ion
152.9958Glycerol-3-phosphate ion with loss of H2O
96.9696H2PO4- ion (from phosphate)
78.9591PO3- ion (from phosphate)
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases