Commonly occurring product ions for PG(20:0/15:0)) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 763.5495 | Precursor ion [M-H]- |  |
| 689.5127 | Loss of glycerol from precursor ion |  |
| 539.3355 | Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 521.3249 | Neutral loss of sn2 RCOOH group from [M-H]- |  |
| 469.2572 | Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 465.2987 | Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]- |  |
| 451.2466 | Neutral loss of sn1 RCOOH group from [M-H]- |  |
| 447.2881 | Neutral loss of sn2 RCOOH group and glycerol from [M-H]- |  |
| 395.2204 | Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]- |  |
| 377.2099 | Neutral loss of sn1 RCOOH group and glycerol from [M-H]- |  |
| 311.2956 | sn1 RCOO- ion |  |
| 245.0432 | Glycerophosphoglycerol ion |  |
| 241.2173 | sn2 RCOO- ion |  |
| 227.0326 | Glycerophosphoglycerol ion -H2O |  |
| 209.0221 | Glycerophosphoglycerol ion -2H2O |  |
| 152.9958 | Glycerol-3-phosphate ion with loss of H2O |  |
| 96.9696 | H2PO4- ion (from phosphate) |  |
| 78.9591 | PO3- ion (from phosphate) |  |