Commonly occurring product ions for PC(25:0/26:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1034.8289Precursor ion [M.chloride]-
984.8366Loss of CH3 and chloride from precursor ion
913.7631Loss of choline and chloride from precursor ion
620.4661Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
606.4504Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
602.4555Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
588.4399Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
395.3895sn2 RCOO- ion
381.3738sn1 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