Commonly occurring product ions for PA(12:0/15:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
577.3875Precursor ion [M-H]-
395.2204Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
377.2099Neutral loss of sn1 RCOOH group from [M-H]-
353.1735Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
335.1629Neutral loss of sn2 RCOOH group from [M-H]-
241.2173sn2 RCOO- ion
199.1704sn1 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