Commonly occurring product ions for PS(38:0/20:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1098.9047Precursor ion [M-H]-
1011.8726Loss of serine from precursor ion
717.5804Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
699.5698Neutral loss of sn2 RCOOH group and serine from [M-H]-
563.5773sn1 RCOO- ion
465.2987Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
447.2881Neutral loss of sn1 RCOOH group and serine from [M-H]-
311.2956sn2 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