Commonly occurring product ions for PG(17:1(9Z)/20:5(5Z,8Z,11Z,14Z,17Z))) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
779.4869Precursor ion [M-H]-
705.4501Loss of glycerol from precursor ion
529.2572Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
511.2466Neutral 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]-
455.2204Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
437.2099Neutral 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]-
301.2173sn2 RCOO- ion
267.2330sn1 RCOO- ion
257.2275Loss of CO2 from sn2 RCOO- ion (PUFA)
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