Commonly occurring product ions for PS(20:5(5Z,8Z,11Z,14Z,17Z)/22:0)) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 864.5760 | Precursor ion [M-H]- |  |
| 777.5440 | Loss of serine from precursor ion |  |
| 493.3300 | Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 475.3194 | Neutral loss of sn1 RCOOH group and serine from [M-H]- |  |
| 455.2204 | Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 437.2099 | Neutral loss of sn2 RCOOH group and serine from [M-H]- |  |
| 339.3269 | sn2 RCOO- ion |  |
| 301.2173 | sn1 RCOO- ion |  |
| 257.2275 | 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) |  |