Commonly occurring product ions for PS(18:4(9E,11E,13E,15E)/15:0) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 740.4508 | Precursor ion [M-H]- |  |
| 653.4188 | Loss of serine from precursor ion |  |
| 429.2048 | Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 411.1942 | Neutral loss of sn2 RCOOH group and serine from [M-H]- |  |
| 395.2204 | Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 377.2099 | Neutral loss of sn1 RCOOH group and serine from [M-H]- |  |
| 275.2017 | sn1 RCOO- ion |  |
| 241.2173 | sn2 RCOO- ion |  |
| 231.2118 | Loss of CO2 from sn1 RCOO- ion (PUFA) |  |
| 152.9958 | Glycerol-3-phosphate ion with loss of H2O |  |
| 96.9696 | H2PO4- ion (from phosphate) |  |
| 78.9591 | PO3- ion (from phosphate) |  |