Elutant | Desorption efficiency (%) of Ni2+ | Desorption efficiency (%) of Cd2+ |
0.1 M HCl | 97.8 | 98.7 |
0.1 M CaCl2 | 57.5 | 49.6 |
0.1 M Na2CO3 | 19.2 | 38.3 |
0.1 M EDTA | 74.8 | 80.1 |
ddH2O | 2.8 | 1.9 |