Commonly occurring product ions for PC(14:0/36:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1020.8133Precursor ion [M.chloride]-
970.8209Loss of CH3 and chloride from precursor ion
899.7474Loss of choline and chloride from precursor ion
760.6226Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
742.6120Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
535.5460sn2 RCOO- ion
452.2783Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
434.2677Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
227.2017sn1 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