Commonly occurring product ions for PG(14:0/24:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
805.5964Precursor ion [M-H]-
731.5596Loss of glycerol from precursor ion
595.3981Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
577.3875Neutral loss of sn1 RCOOH group from [M-H]-
521.3613Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
503.3507Neutral loss of sn1 RCOOH group and glycerol from [M-H]-
455.2416Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
437.2310Neutral loss of sn2 RCOOH group from [M-H]-
381.2048Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
367.3582sn2 RCOO- ion
363.1942Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
245.0432Glycerophosphoglycerol ion
227.2017sn1 RCOO- 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