Commonly occurring product ions for PE(P-16:0/22:1(11Z)) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
756.5913Precursor ion [M-H]-
534.3565Loss of plasmenyl group (RCH=CH2) from [M-H]-
516.3460Neutral loss of plasmenyl group RCH=CHOH) from [M-H]-
436.2834Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
418.2728Neutral loss of sn2 RCOOH group from [M-H]-
337.3112sn2 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