Commonly occurring product ions for PG(28:0/10:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
805.5964Precursor ion [M-H]-
731.5596Loss of glycerol from precursor ion
651.4607Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
633.4501Neutral loss of sn2 RCOOH group from [M-H]-
577.4239Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
559.4133Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
423.4208sn1 RCOO- ion
399.1790Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
381.1684Neutral loss of sn1 RCOOH group from [M-H]-
325.1422Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
307.1316Neutral loss of sn1 RCOOH group and glycerol from [M-H]-
245.0432Glycerophosphoglycerol ion
227.0326Glycerophosphoglycerol ion -H2O
209.0221Glycerophosphoglycerol ion -2H2O
171.1391sn2 RCOO- ion
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