Commonly occurring product ions for PG(29:0/26:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1043.8625Precursor ion [M-H]-
969.8257Loss of glycerol from precursor ion
665.4763Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
647.4657Neutral loss of sn2 RCOOH group from [M-H]-
623.4294Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
605.4188Neutral loss of sn1 RCOOH group from [M-H]-
591.4395Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
573.4290Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
549.3926Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
531.3820Neutral loss of sn1 RCOOH group and glycerol from [M-H]-
437.4364sn1 RCOO- ion
395.3895sn2 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