Commonly occurring product ions for PS(P-22:1(11Z)/4:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
632.3933Precursor ion [M-H]-
545.3613Loss of serine from precursor ion
475.3194Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
457.3088Neutral loss of sn2 RCOOH group and serine from [M-H]-
152.9958Glycerol-3-phosphate ion with loss of H2O
96.9696H2PO4- ion (from phosphate)
87.0452sn2 RCOO- ion
78.9591PO3- ion (from phosphate)
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases