Commonly occurring product ions for PS(28:0/20:5(5Z,8Z,11Z,14Z,17Z)) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 948.6699 | Precursor ion [M-H]- |  |
| 861.6379 | Loss of serine from precursor ion |  |
| 577.4239 | Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 559.4133 | Neutral loss of sn2 RCOOH group and serine from [M-H]- |  |
| 455.2204 | Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 437.2099 | Neutral loss of sn1 RCOOH group and serine from [M-H]- |  |
| 423.4208 | sn1 RCOO- ion |  |
| 301.2173 | sn2 RCOO- ion |  |
| 257.2275 | Loss of CO2 from sn2 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) |  |