Commonly occurring product ions for PC(O-20:0/28:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
978.8027Precursor ion [M.chloride]-
928.8104Loss of CH3 and chloride from precursor ion
857.7369Loss of choline and chloride from precursor ion
522.3929Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
504.3823Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
433.3088Loss of choline, chloride and neutral loss of sn2 RCOOH group from precursor ion
423.4208sn2 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