| Normal control | : Media (24 h) + Media (24 h) |
| CC50 of Cd (negative control) | : Media (24 h) + Cd at CC50 (24 h) |
| CC50 of Cd + EDTA (positive control) | : Media (24 h) + CaNa2EDTA mixed with Cd at CC50 (24 h) |
| Tested sample | : CDE (24 h) + CaNa2EDTA mixed with Cd at CC50 (24 h) |