Commonly occurring product ions for PC(39:0/38:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1399.2358Precursor ion [M.chloride]-
1349.2435Loss of CH3 and chloride from precursor ion
1278.1700Loss of choline and chloride from precursor ion
802.6695Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
788.6539Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
784.6590Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
770.6433Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
577.5929sn1 RCOO- ion
563.5773sn2 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