Commonly occurring product ions for PS(26:1(5Z)/39:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1194.9986Precursor ion [M-H]-
1107.9665Loss of serine from precursor ion
731.5960Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
713.5855Neutral loss of sn1 RCOOH group and serine from [M-H]-
577.5929sn2 RCOO- ion
547.3769Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
529.3664Neutral loss of sn2 RCOOH group and serine from [M-H]-
393.3738sn1 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