Solvent conc., M | Extraction Efficiency, % | ||
Cu | Co | Ni | |
0.1 | 77.2 | 84.4 | 85.2 |
0.3 | 82.2 | 88.5 | 90.2 |
0.5 | 88.5 | 96.0 | 94.0 |
1 | 96.8 | 97.0 | 97.4 |