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

m/zIon DescriptionStructure (click to enlarge)
840.5316Precursor ion [M.chloride]-
790.5392Loss of CH3 and chloride from precursor ion
719.4657Loss of choline and chloride from precursor ion
552.3096Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
534.2990Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
480.3096Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
462.2990Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
327.2330sn1 RCOO- ion
283.2431Loss of CO2 from sn1 RCOO- ion (PUFA)
255.2330sn2 RCOO- ion
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