Commonly occurring product ions for PC(32:0/33:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1231.0480Precursor ion [M.chloride]-
1181.0557Loss of CH3 and chloride from precursor ion
1109.9822Loss of choline and chloride from precursor ion
718.5756Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
704.5600Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
700.5651Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
686.5494Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
493.4990sn2 RCOO- ion
479.4834sn1 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