Commonly occurring product ions for PS(29:0/38:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1225.0455Precursor ion [M-H]-
1138.0135Loss of serine from precursor ion
717.5804Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
699.5698Neutral loss of sn1 RCOOH group and serine from [M-H]-
591.4395Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
573.4290Neutral loss of sn2 RCOOH group and serine from [M-H]-
563.5773sn2 RCOO- ion
437.4364sn1 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