Table 3.
Main analytical performances of the ISEs in the presence of interfering specie CEA under the specified concentrations, in pH 6.5.
| Analytical Feature | MIP | NIP | MIP + TOB | NIP + TOB | MIP + PClTPB | NIP + PClTPB |
|---|---|---|---|---|---|---|
| Slope (mV/decade) | 40.6 ± 1.4 | 35.2 ± 3.1 | 23.1 ± 1.4 | 21.7 ± 0.9 | 40.8 ± 1.4 | 38.5 ± 1.7 |
| R2 (n = 3) | 0.9902 | 0.9909 | 0.9871 | 0.9918 | 0.9927 | 0.997 |
| LOD (U/mL) | 1.17 | 1.10 | 1.07 | 1.02 | 1.20 | 1.02 |
| LLLR (U/mL) | 1.44 | 1.10 | 1.45 | 1.10 | 1.10 | 1.10 |
| ULLR (U/mL) | 13.2 | 13.2 | 10.5 | 13.2 | 13.2 | 13.2 |
| Response time (s) | 60 s | 60 s | 60 s | 60 s | 60 s | 60 s |
LOD: limit of detection; LLLR: Lower Limit of Linear Range; ULLR: Upper Limit of Linear Range.