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Calibration and internal standard compound manufacturer, purity information, and monitored transitions
| Compound | Manufacturer | Stated purity (%) | Precursor ion (m/z) | Primary transition (m/z) | Secondary transition (m/z) |
|---|---|---|---|---|---|
| Cortisol | Sigma-Aldrich | ≥ 98 | 363.2 | 121.3 | 267.3 |
| Cortisone | Sigma-Aldrich | ≥ 98 | 361.1 | 163.3 | 121.3 |
| Cortisol-d4 | Cerilliant | 99.99 | 367.3 | 121.2 | 271.5 |
| Cortisone-13C3 | Sigma-Aldrich | 98 | 364.2 | 166.5 | 124.1 |
