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Assay Recovery
| Drug | % Abs Recovery (% Mean ± SD, n=3) |
|---|---|
| Acetyl Fentanyl | 102 ± 1 |
| Acetyl Fentanyl-13C6 | 94 ± 4 |
| NorAcetyl Fentanyl | 110 ± 1 |
| NorAcetyl Fentanyl-13C6 | 104 ± 10 |
| Fentanyl | 104 ± 18 |
| Fentanyl-d5 | 95 ± 8 |
| Norfentanyl | 107 ± 4 |
| Norfentanyl-d5 | 118 ± 9 |
