Commonly occurring product ions for PE(P-18:1(9Z)/20:0)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
756.5913Precursor ion [M-H]-
508.3409Loss of plasmenyl group (RCH=CH2) from [M-H]-
490.3303Neutral loss of plasmenyl group RCH=CHOH) from [M-H]-
462.2990Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
444.2884Neutral loss of sn2 RCOOH group from [M-H]-
311.2956sn2 RCOO- ion
152.9958Glycerol-3-phosphate ion with loss of H2O
140.0118Ethanolamine phosphate ion
122.0013Ethanolamine 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