Spectrophotometric method | Amount taken (μg∙ml−1) | Recovery (% ± RSD)a | ||
Initial rate method | Fixed time method | |||
|
| Intra-day | ||
Conventional | 15 | 97.56 ± 2.97 | 98.22 ± 3.86 | |
60 | 101.30 ± 2.12 | 99.03 ± 1.88 | ||
100 | 100.85 ± 1.46 | 101.24 ± 1.90 | ||
|
|
|
| |
96-Microwell plate | 15 | 98.01 ± 2.15 | 100.31 ± 1.91 | |
60 | 101.72 ± 0.98 | 100.24 ± 1.08 | ||
100 | 100.10 ± 0.71 | 100.36 ± 0.84 | ||
|
| Inter-day | ||
Conventional | 15 | 97.25 ± 3.83 | 98.35 ± 3.94 | |
60 | 101.10 ± 2.14 | 99.15 ± 2.31 | ||
100 | 101.31 ± 1.60 | 100.17 ± 1.80 | ||
|
|
|
| |
96-Microwell plate | 15 | 97.86 ± 1.87 | 100.71 ± 2.08 | |
60 | 101.10 ± 1.16 | 100.34 ± 1.26 | ||
100 | 100.81 ± 0.85 | 100.15 ± 0.91 |