Commonly occurring product ions for PC(10:0/13:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
642.3907Precursor ion [M.chloride]-
592.3984Loss of CH3 and chloride from precursor ion
521.3249Loss of choline and chloride from precursor ion
438.2626Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
420.2521Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
396.2157Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
378.2051Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
224.0693Glycerophosphocholine with loss of CH3 and H2O
213.1860sn2 RCOO- ion
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