Commonly occurring product ions for PS(28:0/20:4(7E,10E,13E,16E)) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 950.6856 | Precursor ion [M-H]- |  |
| 863.6535 | 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]- |  |
| 457.2361 | Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 439.2255 | Neutral loss of sn1 RCOOH group and serine from [M-H]- |  |
| 423.4208 | sn1 RCOO- ion |  |
| 303.2330 | sn2 RCOO- ion |  |
| 259.2431 | 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) |  |