Table 1.
Regression and validation data for the determination of RDV and APX by the proposed method.
| Parameters | RDV | APX |
|---|---|---|
| Wavelength (nm) | 410 | 469 |
| Linearity range (ng/mL) | 5–200 | 50–3000 |
| LOD (ng/mL) | 0.603 | 8.598 |
| LOQ (ng/mL) | 1.828 | 26.054 |
| Slope | 0.0349 | 0.0023 |
| Intercept | 0.2604 | 0.3678 |
| Coefficient of determination (r2) | 0.9992 | 0.9994 |
| Accuracy (%Er)a | −0.14 | 0.59 |
| Repeatability Precision (RSD)b | 0.771 | 0.624 |
| Intermediate precision (RSD)b | 0.925 | 0.815 |
a
The mean average percentage error of nine determinations (three concentrations repeated three times).
b
RSD of nine determinations (three concentrations repeated three times).