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Validation results for quality control samples (N = 15).
| Analyte | Concentration (ng/mL) | CVt (%) | Accuracy (%) |
|---|---|---|---|
| Heroin | 5.6 | 5.70 | 104.9 |
| 40 | 7.71 | 100.3 | |
| 160 | 6.69 | 100.2 | |
| 6-MAM | 5.6 | 7.98 | 101.0 |
| 40 | 6.51 | 102.0 | |
| 160 | 4.06 | 94.9 | |
| 400 | 8.88a | 96.3 | |
| Morphine | 16 | 8.59 | 94.6 |
| 40 | 6.13 | 97.8 | |
| 160 | 7.71 | 98.2 |
N = 8.
