Commonly occurring product ions for PG(O-22:0/20:4(5E,8E,11E,14E)) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 839.6172 | Precursor ion [M-H]- |  |
| 765.5804 | Loss of glycerol from precursor ion |  |
| 553.3875 | Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 535.3769 | Neutral loss of sn2 RCOOH group from [M-H]- |  |
| 479.3507 | Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]- |  |
| 461.3401 | Neutral loss of sn2 RCOOH group and glycerol from [M-H]- |  |
| 303.2330 | sn2 RCOO- ion |  |
| 259.2431 | Loss of CO2 from sn2 RCOO- ion (PUFA) |  |
| 245.0432 | Glycerophosphoglycerol ion |  |
| 227.0326 | Glycerophosphoglycerol ion -H2O |  |
| 209.0221 | Glycerophosphoglycerol ion -2H2O |  |
| 152.9958 | Glycerol-3-phosphate ion with loss of H2O |  |
| 96.9696 | H2PO4- ion (from phosphate) |  |
| 78.9591 | PO3- ion (from phosphate) |  |