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Elemental analysis of acidified industrial wastewater before and after adsorption using Gd16-AIS QDs.
| Element | Ag | Ti | Pb | Cr | Ni | Zn |
|---|---|---|---|---|---|---|
| Concentration before adsorption (ppm) | 47.7 | 0.3 | 0.2 | 0.6 | 3.1 | 2.1 |
| Concentration after adsorption (ppm) | **ND | **ND | **ND | **ND | **ND | **ND |
| %Ag removal | 100 | 100 | 100 | 100 | 100 | 100 |
*ND = Not detected below 0.01 ppm **ND = Not detected below 0.05 ppm.
