Commonly occurring product ions for PS(30:0/36:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1211.0299Precursor ion [M-H]-
1123.9978Loss 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]-
605.4552Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
587.4446Neutral loss of sn2 RCOOH group and serine from [M-H]-
535.5460sn2 RCOO- ion
451.4521sn1 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