Commonly occurring product ions for PS(20:0/22:4(7Z,10Z,13Z,16Z))) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 866.5917 | Precursor ion [M-H]- |  |
| 779.5596 | Loss of serine from precursor ion |  |
| 485.2674 | Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 467.2568 | Neutral loss of sn1 RCOOH group and serine from [M-H]- |  |
| 465.2987 | Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 447.2881 | Neutral loss of sn2 RCOOH group and serine from [M-H]- |  |
| 331.2643 | sn2 RCOO- ion |  |
| 311.2956 | sn1 RCOO- ion |  |
| 287.2744 | 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) |  |