Table 5.
Collective parameters for the determination of the studied drugs by the proposed methods
| Compounds | At 525 nm |
At 610 nm |
||
|---|---|---|---|---|
| Miglitol | Acarbose | Miglitol | Acarbose | |
| Concentration range (μg/ml) | 1-10 | 4-20 | 1-10 | 4-20 |
| Detection limit (μg/ml) | 0.179 | 0.081 | 0.089 | 0.189 |
| Quantification limit (μg/ml) | 0.596 | 0.269 | 0.297 | 0.630 |
| Sy/x | 4.220 × 10-3 | 1.210 × 10-3 | 2.762 × 10-3 | 2.269 × 10-3 |
| Sa | 3.538 × 10-3 | 7.538 × 10-4 | 2.316 × 10-3 | 1. 413 × 10-3 |
| Sb | 5.411 × 10-4 | 8.950 × 10-5 | 3.541 × 10-4 | 1.678 × 10-4 |
| % RSD | 1.269 | 0.719 | 1.186 | 1.095 |
| % Er | 0.568 | 0.322 | 0.484 | 0.490 |
Sy/x, Standard deviation of the residual; Sa, Standard deviation of the intercept; Sb, Standard deviation of the slope; % RSD, Relative standard deviation; % Er, Percentage error.