Commonly occurring product ions for PE(20:4(5Z,8Z,11Z,14Z)/20:4(5Z,8Z,11Z,14Z))) (View full structure)
m/z
Ion Description
Structure (click to enlarge)
786.5079
Precursor ion [M-H]-
500.2783
Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
500.2783
Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
482.2677
Neutral loss of sn1 RCOOH group from [M-H]-
482.2677
Neutral loss of sn2 RCOOH group from [M-H]-
303.2330
sn1 RCOO- ion
303.2330
sn2 RCOO- ion
259.2431
Loss of CO2 from sn2 RCOO- ion (PUFA)
259.2431
Loss of CO2 from sn1 RCOO- ion (PUFA)
152.9958
Glycerol-3-phosphate ion with loss of H2O
140.0118
Ethanolamine phosphate ion
122.0013
Ethanolamine phosphate ion with loss of H2O
96.9696
H2PO4- ion (from phosphate)
78.9591
PO3- ion (from phosphate)
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases
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