Recovery studies of OXY and PMB by HPLC method
| Drugs | Nominal concentration (μg/mL) | Level of addition (%) | Concentration prepared (μg/mL) | Amount recovered (μg/mL) | RSD (%) | Recovery (%) |
|---|---|---|---|---|---|---|
| OXY | 10 | 80 | 8 | 7.55 | 1.63 | 94.41 |
| 10 | 100 | 10 | 9.44 | 1.27 | 95.6 | |
| 10 | 120 | 12 | 11.53 | 1.14 | 97.25 | |
| PMB | 10 | 80 | 8 | 7.44 | 1.67 | 94.62 |
| 10 | 100 | 10 | 9.47 | 1.34 | 96.2 | |
| 10 | 120 | 12 | 11.7 | 1.27 | 99.08 |