Table 1.
Analytical parameters for the determination of favipiravir in BR buffer, pH 8.0 + 6 × 10−4 M CTAB using by SW-AdSV.
| Analytical parameter | 1st linear segment | 2nd linear segment |
|---|---|---|
| Linear working range | 0.01–0.1 μg mL−1 (6.4 × 10−8‒6.4 × 10−7 M) | 0.1–20.0 μg mL−1 (6.4 × 10−7‒1.3 × 10−4 M) |
| Linear regression equation |
ip (μA) = (14.760 ± 0.305) C (μg mL−1) + (0.598 ± 0.053) (n = 5) |
ip (μA) = (0.912 ± 0.006) C (μg mL−1) + (2.317 ± 0.004) (n = 10) |
| Correlation coefficient (r) | 0.997 | 0.999 |
| LOD | 0.0028 μg mL−1 (1.8 × 10−8 M) | 0.023 μg mL−1 (1.5 × 10−7 M) |
| LOQ | 0.0093 μg mL−1 (5.9 × 10−8 M) | 0.076 μg mL−1 (4.9 × 10−7 M) |
| intra-day precision/RSD% | 4.6 (peak current) | 7.3 (peak current) |
| inter-day precision/RSD% | 5.7 (peak current) | 8.8 (peak current) |