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).