| Drugs | Number of the sample | Added (mL) | Added (µM) | Found (µM) | Recovery rates (% ± SD) |
| OMP | 1 | 12 | 259.8 | 223.17 | 85.8 ± 0.3 |
| 2 | 16 | 333.94 | 296.91 | 88.9 ± 0.1 | |
| 3 | 18 | 369.04 | 334.06 | 90.5 ± 0.2 | |
| 4 | 20 | 402.92 | 366.13 | 90.8 ± 0.1 | |
| 5 | 22 | 435.65 | 399.36 | 91.6 ± 0.1 | |
| 6 | 24 | 467.27 | 433.09 | 92.6 ± 0.4 | |
| PCM | 1 | 0.5 | 58.79 | 59.09 | 100.5 ± 0.5 |
| 2 | 0.7 | 79.34 | 80 | 100.8 ± 0.4 | |
| 3 | 0.8 | 89.08 | 90.18 | 101.2 ± 0.4 | |
| 4 | 0.9 | 98.47 | 98.49 | 100.0 ± 0.4 | |
| 5 | 1 | 107.55 | 108.77 | 101.1 ± 0.1 | |
| 6 | 1.1 | 116.32 | 116.31 | 99.9 ± 0.1 |