Commonly occurring product ions for PG(20:0/12:0)) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 721.5025 | Precursor ion [M-H]- |  |
| 647.4657 | 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]- |  |
| 465.2987 | Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]- |  |
| 447.2881 | Neutral loss of sn2 RCOOH group and glycerol from [M-H]- |  |
| 427.2103 | Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 409.1997 | Neutral loss of sn1 RCOOH group from [M-H]- |  |
| 353.1735 | Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]- |  |
| 335.1629 | Neutral loss of sn1 RCOOH group and glycerol from [M-H]- |  |
| 311.2956 | sn1 RCOO- ion |  |
| 245.0432 | Glycerophosphoglycerol ion |  |
| 227.0326 | Glycerophosphoglycerol ion -H2O |  |
| 209.0221 | Glycerophosphoglycerol ion -2H2O |  |
| 199.1704 | sn2 RCOO- ion |  |
| 152.9958 | Glycerol-3-phosphate ion with loss of H2O |  |
| 96.9696 | H2PO4- ion (from phosphate) |  |
| 78.9591 | PO3- ion (from phosphate) |  |