Commonly occurring product ions for PC(10:0/19:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
691.5158Precursor ion [M+]-
676.4923Loss of CH3 and from precursor ion
605.4188Loss of choline and from precursor ion
522.3565Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and from precursor ion
504.3460Neutral loss of sn1 RCOOH group, loss of CH3 and from precursor ion
396.2157Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and from precursor ion
378.2051Neutral loss of sn2 RCOOH group, loss of CH3 and from precursor ion
297.2799sn2 RCOO- ion
224.0693Glycerophosphocholine with loss of CH3 and H2O
171.1391sn1 RCOO- ion
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