Commonly occurring product ions for PS(P-20:1(9Z)/15:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
758.5342Precursor ion [M-H]-
671.5021Loss of serine from precursor ion
447.2881Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
429.2775Neutral loss of sn2 RCOOH group and serine from [M-H]-
241.2173sn2 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