Commonly occurring product ions for PA(20:0/22:5(4Z,7Z,10Z,13Z,16Z)) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 777.5440 | Precursor ion [M-H]- |  |
| 483.2517 | Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 465.2987 | Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 465.2412 | Neutral loss of sn1 RCOOH group from [M-H]- |  |
| 447.2881 | Neutral loss of sn2 RCOOH group from [M-H]- |  |
| 329.2486 | sn2 RCOO- ion |  |
| 311.2956 | sn1 RCOO- ion |  |
| 285.2588 | Loss of CO2 from sn2 RCOO- ion (PUFA) |  |
| 171.0064 | Glycerol-3-phosphate ion |  |
| 152.9958 | Glycerol-3-phosphate ion with loss of H2O |  |
| 96.9696 | H2PO4- ion (from phosphate) |  |
| 78.9591 | PO3- ion (from phosphate) |  |