Commonly occurring product ions for PC(21:0/22:4(7Z,10Z,13Z,16Z))) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 914.6411 | Precursor ion [M.chloride]- |  |
| 864.6488 | Loss of CH3 and chloride from precursor ion |  |
| 793.5753 | Loss of choline and chloride from precursor ion |  |
| 556.3409 | Loss of sn1 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion |  |
| 550.3878 | Loss of sn2 acyl chain as ketene (RCH=C=O), CH3 and chloride from precursor ion |  |
| 538.3303 | Neutral loss of sn1 RCOOH group, loss of CH3 and chloride from precursor ion |  |
| 532.3773 | Neutral loss of sn2 RCOOH group, loss of CH3 and chloride from precursor ion |  |
| 331.2643 | sn2 RCOO- ion |  |
| 325.3112 | sn1 RCOO- ion |  |
| 287.2744 | Loss of CO2 from sn2 RCOO- ion (PUFA) |  |
| 224.0693 | Glycerophosphocholine with loss of CH3 and H2O |  |
| 168.0431 | Phosphocholine with loss of CH3 |  |
| 152.9958 | Glycerol-3-phosphate ion with loss of H2O |  |
| 96.9696 | H2PO4- ion (from phosphate) |  |
| 78.9591 | PO3- ion (from phosphate) |  |