Table 1.
Values of retention time, regression equations, correlation coefficients for linear calibration plots, and limits of detection obtained for examined PFCAs in reversed-phase HPLC determination with fluorescence detection employing derivatization with 3-BrAC (without additional preconcentration)
| PFCA | Retention time (min) | Regression equations | Correlation coefficient | LOD (μg·l−1) |
|---|---|---|---|---|
| C2 | 6.5 | y = 336356 x | 0.9997 | 7.5 |
| C3 | 9.1 | y = 356820 x | 0.9998 | 5.5 |
| C4 | 11.3 | y = 640191 x | 0.9997 | 6.0 |
| C5 | 13.3 | y = 224169 x | 0.9996 | 6.8 |
| C6 | 15.0 | y = 354849 x | 0.9995 | 6.5 |
| C7 | 16.5 | y = 222639 x | 0.9997 | 6.6 |
| C8 | 17.9 | y = 190238 x | 0.9998 | 4.6 |
| C9 | 19.1 | y = 251250 x | 0.9998 | 4.3 |
| C10 | 20.2 | y = 111682 x | 0.9997 | 6.8 |
| C11 | 21.1 | y = 88769 x | 0.9995 | 6.5 |
| C12 | 22.0 | y = 95421 x | 0.9998 | 7.5 |