Table 1.
Electrode Material | Sensitivity (µA·µM−1·cm−2) |
Limit of Detection (µM) | Linear Range (µM) | Response Time (s) | Ref. |
---|---|---|---|---|---|
Nano-nails of ZnO | - | 0.2 | 0.1–1.2 | <5 | [46] |
Nanowires of ZnO with high aspect ratio | - | 0.0847 | 0.5–1.2 | <5 | [47] |
Nanorods of ZnO | 4.76 | 2.2 | 0.2–2.0 | <10 | [48] |
Hierarchical micro/nanostructures of ZnO | 0.51 | 0.25 | 0.8–200 | <3 | [49] |
Nanorods of ZnO/FTO | 0.44 | 515.7 | - | <10 | [50] |
ZnO nanorods/alloy | 4.48 | 0.2 | - | <8 | [51] |
ZnO nanorods/Single walled carbon nanotube | 0.1 | 0.17 | 0.5–50 | - | [52] |
Reduced graphene oxide/ZnO-Au | 5.54 | 0.018 | 0.05–5 | <3 | [53] |
Cetyl pyridine chloride/ZnO | 0.172 | 24 | 1000–60,000 | - | [54] |
ZnO-1/Au/gold electrode ZnO-2/Au/gold electrode ZnO-3/Au/gold electrode |
1.70 2.97 1.25 |
0.25 0.17 0.08 |
0.8–251 201–851 101–851 |
<3 <3 <3 |
[55] |