Commonly occurring product ions for PC(29:0/28:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1118.9228Precursor ion [M.chloride]-
1068.9305Loss of CH3 and chloride from precursor ion
997.8570Loss of choline and chloride from precursor ion
662.5130Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
648.4974Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
644.5025Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
630.4868Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
437.4364sn1 RCOO- 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