Commonly occurring product ions for PG(17:1(9Z)/20:1(11Z))) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
787.5495Precursor ion [M-H]-
713.5127Loss of glycerol from precursor ion
537.3198Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
519.3092Neutral loss of sn1 RCOOH group from [M-H]-
495.2729Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
477.2623Neutral loss of sn2 RCOOH group from [M-H]-
463.2830Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
445.2725Neutral loss of sn1 RCOOH group and glycerol from [M-H]-
421.2361Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
403.2255Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
309.2799sn2 RCOO- ion
267.2330sn1 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