Table 2.
Comparison of various voltammetry techniques for the determination of hg(II).
| Electrode/Method | Electrode modifier | Detection limit | Linear range | References |
|---|---|---|---|---|
| CPEa/DPASVb | Hg-IIP using pyrrole | 130 nM | 0.46–100 µM | [43] |
| CPE/DPVc | Hg-IIP using 1,5-dipenylcarbazone | 70 nM | 0.1–40 µM | [44] |
| GCEd/DPV | Hg-IIP using porphyrin and MWCNTs | 5 nM | 0.01–700 µM | [45] |
| CPE/DPV | Hg-IIP using 4-vinyl pyridine | 0.52 nM | 2.5–500 nM | [46] |
| GCE/SWASVe | Sulphur containing carboxy methyl/Hg-IIP | 0.5 nM | 99.7–4000 nM | [47] |
| GCE/DPV | Hg-IIP based on thiourea derivative functionalised graphene quantum dot | 23.5 nM | 0.05–230 µM | [48] |
| CPE/DPASV | Hg(II)-IIP using MCP | 0.2 nM | 1.0-240.0 nM | This work |
a: Carbon paste electrode; b: Differential pulse anodic stripping voltammetry; c: Differential pulse voltammetry; d: Glassy carbon electrode; e: Square wave anodic stripping voltammetry.