Commonly occurring product ions for PA(P-16:1(11Z)/22:5(4Z,7Z,10Z,13Z,16Z)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
703.4708Precursor ion [M-H]-
391.2255Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
373.2149Neutral loss of sn2 RCOOH group from [M-H]-
329.2486sn2 RCOO- ion
285.2588Loss of CO2 from sn2 RCOO- ion (PUFA)
171.0064Glycerol-3-phosphate 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