Commonly occurring product ions for PC(23:0/22:1(13Z)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
948.7194Precursor ion [M.chloride]-
898.7270Loss of CH3 and chloride from precursor ion
827.6535Loss of choline and chloride from precursor ion
578.4191Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
562.3878Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
560.4086Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
544.3773Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
353.3425sn1 RCOO- ion
337.3112sn2 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