Commonly occurring product ions for PC(15:0/0:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
481.3174Precursor ion [M+]-
466.2939Loss of CH3 and from precursor ion
395.2204Loss of choline and from precursor ion
242.0799Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and from precursor ion
241.2173sn1 RCOO- ion
224.0693Glycerophosphocholine with loss of CH3 and H2O
224.0693Neutral loss of sn1 RCOOH group, loss of CH3 and from precursor 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