Commonly occurring product ions for PC(28:0/27:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1090.8915Precursor ion [M.chloride]-
1040.8992Loss of CH3 and chloride from precursor ion
969.8257Loss of choline and chloride from precursor ion
648.4974Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
634.4817Loss of sn1 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
616.4712Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
423.4208sn1 RCOO- ion
409.4051sn2 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