Commonly occurring product ions for PC(22:4(7Z,10Z,13Z,16Z)/22:2(13Z,16Z))) (View full structure)
m/z
Ion Description
Structure (click to enlarge)
924.6255
Precursor ion [M.chloride]-
874.6331
Loss of CH3 and chloride from precursor ion
803.5596
Loss of choline and chloride from precursor ion
560.3722
Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
556.3409
Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion
542.3616
Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion
538.3303
Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion
335.2956
sn2 RCOO- ion
331.2643
sn1 RCOO- ion
287.2744
Loss of CO2 from sn1 RCOO- ion (PUFA)
224.0693
Glycerophosphocholine with loss of CH3 and H2O
168.0431
Phosphocholine with loss of CH3
152.9958
Glycerol-3-phosphate ion with loss of H2O
96.9696
H2PO4- ion (from phosphate)
78.9591
PO3- ion (from phosphate)
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases
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