Table 7.
Performance Comparison with Other Works.
| Electrode | Method | Real Samples | Heavy Metals Detected | LOD (ppb) | Reference |
|---|---|---|---|---|---|
| Mercury film | Inverse voltammetry | Vegetables | Cu, Cd, Pb, Zn | Cu = 5000 Cd = 30 Pb = 50 Zn = 1000 |
5 |
| Nafion- coated Bi film | DPASV | Vegetables | Cd, Pb, Zn | Cd = 17 Pb = 0.17 Zn = 0.30 |
6 |
| Hanging mercury drop | SWASV | Vegetables | Hg, Cu, Pb, Cd, Zn | Hg = 0.081 Cu = 0.18 Pb = 0.12 Cd = 0.19 Zn = 0.23 |
11 |
| AgNP modified GCE | Linear Sweep Voltammetry | Water | Hg | Hg = 0.028 | 17 |
| MWCNT/Nafion nanocomposite film | SWASV | Water | Cd | Cd = 1 | 30 |
| Bi/MWCNT/EBP/Nafion modified GCE | SWASV | Soil | Cd, Pb | Cd = 0.08 Pb = 0.06 | 31 |
| Engineered MWCNT | SWASV | Water | Cd, Pb | Cd = 0.4 Pb = 0.3 |
32 |
| AuNP/Graphene./Nafion modified GCE | ASV | Cigarettes | Cd, Pb, Cu | Cd = 0.122 Pb = 0.014 Cu = 209 | 33 |
| AuNP/[Ru(NH3)6]3+./Nafion modified GCE | ASV | Hair Dyes | Cd, Pb | Cd = 200 Pb = 45 |
34 |
| AgNPs/MWCNTs/Nafion modified GCE | ASV | Vegetables | Cd, Pb | Cd = 0.481 Pb = 0.216 | This work |