Commonly occurring product ions for PS(16:1(9Z)/20:4(5Z,8Z,11Z,14Z))) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 780.4821 | Precursor ion [M-H]- |  |
| 693.4501 | Loss of serine from precursor ion |  |
| 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]- |  |
| 407.2204 | Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 389.2099 | Neutral loss of sn2 RCOOH group and serine from [M-H]- |  |
| 303.2330 | sn2 RCOO- ion |  |
| 259.2431 | Loss of CO2 from sn2 RCOO- ion (PUFA) |  |
| 253.2173 | sn1 RCOO- ion |  |
| 152.9958 | Glycerol-3-phosphate ion with loss of H2O |  |
| 96.9696 | H2PO4- ion (from phosphate) |  |
| 78.9591 | PO3- ion (from phosphate) |  |