Table 2.
Analytical performance data for the proposed approach.
| parameters | OLS | SUL |
|---|---|---|
| linearity range (µg ml−1) | 1.0–10.0 | 1.0–10.0 |
| intercept (a) | 30.060 | −9.800 |
| slope (b) | 38.666 | 39.800 |
| correlation coefficient (r) | 0.9999 | 0.9999 |
| s.d. of residuals (Sy/x) | 0.796 | 1.613 |
| s.d. of intercept (Sa) | 0.620 | 1.255 |
| s.d. of slope (Sb) | 0.102 | 0207 |
| percentage relative standard deviation, % RSD | 0.52 | 0.46 |
| percentage relative error, % error | 0.22 | 0.19 |
| limit of detection, LOD (ng ml−1) | 53 | 104 |
| limit of quantitation, LOQ (ng ml−1) | 160 | 315 |