Commonly occurring product ions for PG(P-22:0/13:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
747.5546Precursor ion [M-H]-
673.5178Loss of glycerol from precursor ion
551.3718Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
533.3613Neutral loss of sn2 RCOOH group from [M-H]-
477.3351Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
459.3245Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
245.0432Glycerophosphoglycerol ion
227.0326Glycerophosphoglycerol ion -H2O
213.1860sn2 RCOO- ion
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