Commonly occurring product ions for PS(26:2(5Z,9Z)/23:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
968.7325Precursor ion [M-H]-
881.7005Loss of serine from precursor ion
545.3613Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
527.3507Neutral loss of sn2 RCOOH group and serine from [M-H]-
507.3456Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
489.3351Neutral loss of sn1 RCOOH group and serine from [M-H]-
391.3582sn1 RCOO- ion
353.3425sn2 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