Commonly occurring product ions for PS(17:0/39:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1070.8734Precursor ion [M-H]-
983.8413Loss of serine from precursor ion
731.5960Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
713.5855Neutral loss of sn1 RCOOH group and serine from [M-H]-
577.5929sn2 RCOO- ion
423.2517Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
405.2412Neutral loss of sn2 RCOOH group and serine from [M-H]-
269.2486sn1 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