Commonly occurring product ions for PA(20:4(7E,10E,13E,16E)/22:1(13Z)) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 777.5440 | Precursor ion [M-H]- |  |
| 491.3143 | Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 473.3038 | Neutral loss of sn1 RCOOH group from [M-H]- |  |
| 457.2361 | Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 439.2255 | Neutral loss of sn2 RCOOH group from [M-H]- |  |
| 337.3112 | sn2 RCOO- ion |  |
| 303.2330 | sn1 RCOO- ion |  |
| 259.2431 | Loss of CO2 from sn1 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) |  |