Table 4.
The adsorption of Pb and Cd from contaminated milk samples by bentonite clay, date pit, and Chitosan nanoparticles (Cs-NP) (N 20)
| Element | No adsorbents | After adsorbents | |||||
|---|---|---|---|---|---|---|---|
| Control | Bentonite clay | Date pit | Cs-NP | ||||
| Mean ± SD | Mean ± SD | Removal % | Mean ± SD | Removal % | Mean ± SD | Removal % | |
| Pb (mg/kg) | 0.363 ± 0.12 | 0.059 ± 0.04 | 84% | 0.012 ± 0.01 | 97% | 0.065 ± 0.06 | 82% |
| Cd (mg/kg) | 0.065 ± 0.03 | 0.008 ± 0.007 | 88% | 0.005 ± 0.003 | 93% | 0.001 ± 0.001 | 98% |
Data are expressed as (mean ± SD)
The percentage of Pb and Cd removal was determined compared to controls with no adsorbing agent SD standard deviation