Selectivity coefficients of various ions using sensor (IV) and sensor (VIII).
| Interfering ions |
|
|
||
|---|---|---|---|---|
| Sensor (IV)a | Sensor (VIII)a | Sensor (IV)b | Sensor (VIII)b | |
| Mg2+ | 5.06 | 5.15 | 5.22 | 5.27 |
| Zn2+ | 5.13 | 5.19 | 5.26 | 5.41 |
| Ca2+ | 5.54 | 5.61 | 5.59 | 5.62 |
| Cu2+ | 4.98 | 5.15 | 5.21 | 5.36 |
| Ba2+ | 4.57 | 5.59 | 5.65 | 5.68 |
| Hg2+ | 2.33 | 2.61 | 3.19 | 3.26 |
| Bi3+ | 3.91 | 3.94 | 3.98 | 4.04 |
| Fe3+ | 2.13 | 2.25 | 2.30 | 2.42 |
| Al3+ | 3.59 | 3.62 | 3.65 | 3.68 |
| Cr3+ | 5.32 | 5.37 | 5.39 | 5.41 |
| K+ | 5.87 | 5.89 | 5.90 | 5.92 |
| Na+ | 5.96 | 6.11 | 6.02 | 6.27 |
| Y3+ | 2.21 | 2.23 | 2.35 | 2.38 |
| La3+ | 2.65 | 2.68 | 2.71 | 2.73 |
| CN− | 5.77 | 5.79 | 5.82 | 5.84 |
| Br− | 5.06 | 5.08 | 5.11 | 5.17 |
| Cl− | 4.84 | 4.86 | 4.89 | 4.93 |
| I− | 4.93 | 5.11 | 5.29 | 5.33 |
a
Selectivity coefficients found by matched potential method.
b
Selectivity coefficients found by fixed interference method.