Commonly occurring product ions for PS(22:6(4Z,7Z,10Z,13Z,16Z,19Z)/0:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
568.2681Precursor ion [M-H]-
481.2361Loss of serine from precursor ion
327.2330sn1 RCOO- ion
283.2431Loss of CO2 from sn1 RCOO- ion (PUFA)
171.0064Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
152.9958Glycerol-3-phosphate ion with loss of H2O
152.9958Neutral loss of sn1 RCOOH group and serine from [M-H]-
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