Table 1.
Analytical parameters for determination of MET, EMP and LIN ternary mixture using the proposed MEKC-DAD method
| Parameters | MET | EMP | LIN |
|---|---|---|---|
| Selected wavelength λ (nm) | 230 | ||
|
Concentration range (µg. mL−1) |
10–500 | 10–100 | 2.5–100 |
|
Regression equation: Intercept (a) Slope (b) |
−4.41 1.98 |
−1.99 1.40 |
−2.70 7.96 |
| Correlation coefficient (r) | 0.9996 | 0.9997 | 0.9992 |
| Saa | 5.33 | 0.60 | 6.20 |
| Sbb | 0.02 | 0.01 | 0.11 |
| Sy/xc | 8.55 | 0.89 | 9.51 |
| RSD% of the slope (Sb%) | 1.01 | 0.71 | 1.38 |
| Fd | 10,635.62 | 17,987.06 | 5404.57 |
| Significance F | 5.30 × 10–8 | 1.85 × 10–8 | 2.05 × 10–8 |
| LODe (µg. mL−1) | 3 | 3 | 1 |
| LOQf (µg. mL−1) | 10 | 10 | 2.5 |
aStandard deviation of the intercept
bStandard deviation of the slope
cStandard deviation of the residuals
dVariance ratio, equals the mean of squares due to regression divided by the mean of squares about regression (due to residuals)
eLOD = Limit of detection
fLOQ = Limit of quantitation