Commonly occurring product ions for PC(O-16:1(9Z)/20:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
808.5992Precursor ion [M.chloride]-
758.6069Loss of CH3 and chloride from precursor ion
687.5334Loss of choline and chloride from precursor ion
464.3147Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
446.3041Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
375.2306Loss of choline, chloride and neutral loss of sn2 RCOOH group from precursor ion
311.2956sn2 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