Commonly occurring product ions for PS(21:0/4:0) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 636.3882 | Precursor ion [M-H]- |  |
| 549.3562 | Loss of serine from precursor ion |  |
| 479.3143 | Loss of sn2 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 461.3038 | Neutral loss of sn2 RCOOH group and serine from [M-H]- |  |
| 325.3112 | sn1 RCOO- ion |  |
| 241.0483 | Loss of sn1 acyl chain as ketene (RCH=C=O) and serine from [M-H]- |  |
| 223.0377 | Neutral loss of sn1 RCOOH group and serine from [M-H]- |  |
| 152.9958 | Glycerol-3-phosphate ion with loss of H2O |  |
| 96.9696 | H2PO4- ion (from phosphate) |  |
| 87.0452 | sn2 RCOO- ion |  |
| 78.9591 | PO3- ion (from phosphate) |  |