Commonly occurring product ions for PC(38:0/18:4(6Z,9Z,12Z,15Z)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1096.8446Precursor ion [M.chloride]-
1046.8522Loss of CH3 and chloride from precursor ion
975.7787Loss of choline and chloride from precursor ion
788.6539Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
770.6433Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
563.5773sn1 RCOO- ion
500.2783Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
482.2677Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
275.2017sn2 RCOO- ion
231.2118Loss of CO2 from sn2 RCOO- ion (PUFA)
224.0693Glycerophosphocholine with loss of CH3 and H2O
168.0431Phosphocholine with loss of CH3
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