Table 2. Selectivity Coefficients for Phenobarbital Membrane-Based Sensors.
| log KpotPBAR,J ± SDaa |
||
|---|---|---|
| interfering ion, J | ISE I | ISE II |
| barbital | –1.5 ± 0.1 | –1.1 ± 0.2 |
| pentobarbital | –1.7 ± 0.1 | –1.5 ± 0.2 |
| valsartan | –3.7 ± 0.2 | –3.3 ± 0.1 |
| oxalate | –4.0 ± 0.2 | –4.4 ± 0.2 |
| chloride | –5.1 ± 0.1 | –4.7 ± 0.3 |
| creatinine | –3.8 ± 0.3 | –4.3 ± 0.1 |
| urea | –4.9 ± 0.2 | –4.9 ± 0.1 |
| glucose | –5.5 ± 0.3 | –5.4 ± 0.3 |
| NH4+ | –4.3 ± 0.1 | –4.0 ± 0.1 |
| Na+ | –5.6 ± 0.1 | –5.6 ± 0.2 |
| K+ | –5.4 ± 0.1 | –5.4 ± 0.1 |
SD = standard deviation (n = 4).