Commonly occurring product ions for PG(20:1(11E)/2:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
579.3304Precursor ion [M-H]-
537.3198Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
519.3092Neutral loss of sn2 RCOOH group from [M-H]-
505.2936Loss of glycerol from precursor ion
463.2830Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
445.2725Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
309.2799sn1 RCOO- ion
287.0538Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
269.0432Neutral loss of sn1 RCOOH group from [M-H]-
245.0432Glycerophosphoglycerol ion
227.0326Glycerophosphoglycerol ion -H2O
213.0170Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
209.0221Glycerophosphoglycerol ion -2H2O
195.0064Neutral loss of sn1 RCOOH group and glycerol from [M-H]-
152.9958Glycerol-3-phosphate ion with loss of H2O
96.9696H2PO4- ion (from phosphate)
78.9591PO3- ion (from phosphate)
59.0139sn2 RCOO- ion
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases