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MS/MS Detection parameters for persulfide analysis.
| Analyte | Parent m/z | Fragment m/z | Collision energy (eV) |
|---|---|---|---|
| Cys | 299.1 | 121.1 | 34 |
| Cys (int. std) | 300.1 | 121.1 | 34 |
| Cys-persulfide | 331.1 | 121.1 | 35 |
| Cys-persulfide (int. std) | 333.1 | 121.1 | 35 |
| GSH | 485.1 | 356.1 | 16 |
| GSH-persulfide | 517.1 | 388.1 | 18 |
| H2S | 389.1 | 121.1 | 38 |
