Commonly occurring product ions for PS(17:2(9Z,12Z)/36:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1024.7951Precursor ion [M-H]-
937.7631Loss of serine from precursor ion
689.5491Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
671.5385Neutral loss of sn1 RCOOH group and serine from [M-H]-
535.5460sn2 RCOO- ion
419.2204Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
401.2099Neutral loss of sn2 RCOOH group and serine from [M-H]-
265.2173sn1 RCOO- 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