Commonly occurring product ions for PG(11:0/26:2(5Z,9Z)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
787.5495Precursor ion [M-H]-
713.5127Loss of glycerol from precursor ion
619.3981Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
601.3875Neutral loss of sn1 RCOOH group from [M-H]-
545.3613Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
527.3507Neutral loss of sn1 RCOOH group and glycerol from [M-H]-
413.1946Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
395.1840Neutral loss of sn2 RCOOH group from [M-H]-
391.3582sn2 RCOO- ion
339.1578Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
321.1473Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
245.0432Glycerophosphoglycerol ion
227.0326Glycerophosphoglycerol ion -H2O
209.0221Glycerophosphoglycerol ion -2H2O
185.1547sn1 RCOO- ion
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