Commonly occurring product ions for PG(17:0/14:1(9Z)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
705.4712Precursor ion [M-H]-
631.4344Loss of glycerol from precursor ion
497.2885Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
479.2779Neutral loss of sn2 RCOOH group from [M-H]-
453.2259Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
435.2153Neutral loss of sn1 RCOOH group from [M-H]-
423.2517Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
405.2412Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
379.1891Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
361.1786Neutral loss of sn1 RCOOH group and glycerol from [M-H]-
269.2486sn1 RCOO- ion
245.0432Glycerophosphoglycerol ion
227.0326Glycerophosphoglycerol ion -H2O
225.1860sn2 RCOO- ion
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