Commonly occurring product ions for PG(19:0/2:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
567.3304Precursor ion [M-H]-
525.3198Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
507.3092Neutral loss of sn2 RCOOH group from [M-H]-
493.2936Loss of glycerol from precursor ion
451.2830Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
433.2725Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
297.2799sn1 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