Commonly occurring product ions for PC(28:0/26:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1076.8759Precursor ion [M.chloride]-
1026.8835Loss of CH3 and chloride from precursor ion
955.8100Loss of choline and chloride from precursor ion
648.4974Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
630.4868Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
620.4661Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
602.4555Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
423.4208sn1 RCOO- ion
395.3895sn2 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