Table 3.
Modified Electrode | a LR (μM) | b LOD (μM) | Sensitivity | Ref. |
---|---|---|---|---|
3D N-Co-CNT@NG) | 25–10,830 | 0.1 | 9.05 µA mM−1 cm−2 | [40] |
Cu@porous carbon | 1–6000 | 0.6 | 10,100 | [41] |
[Cu3(c btc)2] nanocube | 1–2250 | 1 | 549 µA mM−1 cm−2 | [42] |
Cu-d BDD | 1–50 | 10 | 2.3 µA mM−1 cm−2 | [43] |
N-doped Carbon-Cu nanohybrids | 5–2100 | 0.7 | 223.6 µA mM−1 cm−2 | [44] |
Graphene oxide and NiO nanofibers | 2–600 | 0.77 | 1100 | [45] |
Cu nanoporous | 10–500 | 40 | 220 µA mM−1 cm−2 | [46] |
Cu NPs/SWCNTs | 0.5–500 | 0.3 | 0.256 µA mM−1 cm−2 | [47] |
Cu/CuO/ZnO | 100–1000 | 18 | 408 µA mM−1 cm−2 | [48] |
AuCu/CNTs | 80–9260 | 4 | 22 µA mM−1 cm−2 | [49] |
CuNPs/NGO | 1–1803 | 0.44 | 2500 µA mM−1 cm−2 | This work |
a LR—linear range, b LOD—limits of detection, c btc—Benzene-1,3,5-tricarboxylate, d BDD—boron doped diamond electrode.