Concentration (μg/mL) | Measured (mg/L, Mean ± S.D., n = 5) | C.V. (%) | Recovery (%) |
Intra-day assay |
|
|
|
1.25 | 1.17 ± 0.09 | 7.7 | 93.6 |
5 | 4.67 ± 0.26 | 5.6 | 93.4 |
40 | 42.5 ± 2.2 | 5.2 | 106.3 |
Inter-day assay |
|
|
|
1.25 | 1.13 ± 0.10 | 8.8 | 90.4 |
5 | 4.64 ± 0.33 | 7.1 | 92.8 |
40 | 41.6 ± 2.6 | 6.3 | 104.0 |