| 
      
        |  | Pd(II),    µg l-1 added | Recovery,    % |  
        | Tap    water (Mansoura city) | 0.0 | - |  
        | 5.00 | 98.6 ± 0.4 |  
        | 10.0 | 99.7 ± 0.3 |  
        | Nile    water (Talkha fertilizer plant) | 0.0 | - |  
        | 5.0 | 99.5 ± 0.6 |  
        | Nile    water (Mansoura City) | 10.0 | 98.8 ± 0.2 |  
        | 0.00 | - |  
        | 5.0 | 97.9 ± 0.1 |  
        | Seawater    (Ras El-Bar) | 10.0 | 99.8 ± 0.5 |  
        | 0.00 | - |  
        | 5.00 | 99.6 |  
        | Lake    water (Manzala Lake) | 10.0 | 98.9 |  
        | 0.00 | - |  |