Commonly occurring product ions for PG(O-14:0/18:2(9E,11E)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
703.4920Precursor ion [M-H]-
629.4552Loss of glycerol from precursor ion
441.2623Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
423.2517Neutral loss of sn2 RCOOH group from [M-H]-
367.2255Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
349.2149Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
279.2330sn2 RCOO- ion
245.0432Glycerophosphoglycerol ion
227.0326Glycerophosphoglycerol ion -H2O
209.0221Glycerophosphoglycerol ion -2H2O
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