Table V.
Stability of Methadone and Metabolites at a Concentration of 400 ng/mL (% found) at Certain Parameters
| 24°C, 24 h | 4°C, 24 h | Three Freeze- Thaw Cycles |
|
|---|---|---|---|
| Methadone | 100.2 | 101.4 | 109.2 |
| EDDP | 85.9 | 95.9 | 98.3 |
| EMDP | 108.9 | 103.0 | 99.7 |
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