Table 1.
Selectivity parameters of IIP and CP polymers with methacrylic acid for Ru(III) ions against competitive sorption of other metal ions (2 mL of sample: 100 ng Ru + 100 ng of other ion, pH 4.1, flow rate: 1.2 mL min−1, n = 3)
| Metal ion | Distribution ratio (D), mL g−1 | Selectivity coefficient, α | α r | ||
|---|---|---|---|---|---|
| CP | IIP | CP | IIP | ||
| Ru(III) | 60.9 | 283 | – | – | – |
| Pt(IV) | 2.36 | 1.97 | 25.8 | 144 | 5.6 |
| Pd(II) | 186 | 99.6 | 0.30 | 2.80 | 9.5 |
| Rh(III) | 1.80 | 1.44 | 33.8 | 196 | 5.8 |
| Fe(III) | 53.9 | 103 | 1.13 | 2.70 | 2.2 |
| Co(II) | 157 | 102 | 0.39 | 2.80 | 6.9 |
| Ni(II) | 439 | 466 | 0.14 | 0.61 | 4.3 |