Commonly occurring product ions for PS(11:0/18:2(6Z,9Z)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
688.4195Precursor ion [M-H]-
601.3875Loss of serine from precursor ion
433.2361Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
415.2255Neutral loss of sn1 RCOOH group and serine from [M-H]-
339.1578Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]-
321.1473Neutral loss of sn2 RCOOH group and serine from [M-H]-
279.2330sn2 RCOO- ion
185.1547sn1 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