Table 1.
Summary of optical and regression characteristics of the proposed method
| Parameters | Pregabalin |
|---|---|
| Linear dynamic range (μg/ml) | 0.50–5.00 |
| Regression equationa | Y = 5.02 × 10−2X – 1.8 × 10−3 |
| Sa | 9.17 × 10−4 |
| t Sab | 2.04 × 10−3 |
| Sb | 2.62 × 10−4 |
| t Sbb | 5.84 × 10−4 |
| Correlation coefficient (r) | 0.9999 |
| LOD (μg/ml) | 2.47 × 10−1 |
| LOQ (μg/ml) | 8.15 × 10−2 |
| Variance (So2) of calibration line | 1.54 × 10−6 |
a
With respect to Y = a + b X, where X is the concentration in μg/ml, Y is Absorbance;
b
Confidence interval of the intercept and slope at 95% confidence level and ten degrees of freedom (t=2.228).