Table 5.
An overview of electrochemical sensors for nitrite determination, using nanomaterials and/or nanocomposites.
| Electrochemical Methods | Electrode Material | Linearity Range (mol·L−1) | LOD (mol·L−1) | Application | Reference |
|---|---|---|---|---|---|
| DPV | AgNPs@PAMAM/GCE | 4.00 × 10−6–1.44 × 10−3 | 4.00 × 10−7 | Milk and tap water | [116] |
| DPV | PtNPs/rGO/GCE | Linearity range not declared | 1.00 × 10−7 | Beverages | [117] |
| DPV | TOSC-MoS2/GCE | 6.00 × 10−6–4.20 × 10−3 | 2.00 × 10−6 | River and drinking water | [118] |
| Amperometry | f-MWCNT/PdNPs/GCE | 5.00 × 10−8–3.00 × 10−6 | 2.20 × 10−8 | River, pond, and drinking water | [119] |
| DPV | GNs/GCE | 1.00 × 10−6 –1. 05 × 10−4 | 2.20 × 10−7 | Tap water | [120] |
| DPV | Pd/Fe3O4/polyDOPA/RGO/GCE | 2.50 × 10−6–6.47 × 10−3 | 5.00 × 10−7 | River water and sausage | [121] |
| Amperometry | rGO/Acr/GCE | 4.00 × 10−7–3.60 × 10−3 | 1.20 × 10−7 | Milk, mineral and tap water | [122] |
| Amperometry | MnO2/GO-SPE | 1.00 × 10−7–1.00 × 10−3 | 9.00 × 10−8 | Tap and mineral water | [123] |
| DPV | AuNPs/carbosilane-dendrimer/GCE | 1.00 × 10−5–5. 00 × 10−3 | 2.00 × 10−7 | Natural water | [124] |
| SWV | Cu/MWCNT/RGO/GCE | 1.00 × 10−7–7.50 × 10−5 | 3.00 × 10−8 | Tap and mineral waters, sausages, salami, and cheese | [125] |
| DPV | MOFs-derived α-Fe2O3/CNTs/GCE | 1.00 × 10−7–7.50 × 10−5 | 3.00 × 10−8 | Tap and mineral waters, sausages, salami, and cheese | [126] |
| DPV | CoCNM/GCE | 5.00 × 10−6–7.05 × 10−6 | 1.80 × 10−7 | Tap water | [127] |
| DPV | Ag/CuNCs/MWCNTs/GCE | 1.00 × 10−6–1.00 × 1036 | 2.00 × 10−7 | Lake water, drinking water and seawater. | [128] |
| DPV | Co3O4@rGO/CNTs/GCE | 8.00 × 10−6–5.60 × 10−2 | 1.60 × 10−8 | Tap water | [129] |
| DPV | Ni@Pt/Gr/GCE | 1.00 × 10−5–1.50 × 10−2 | Not declared | Tap water | [130] |
| DPV | AuNPs@Cu-MOF/GCE | 1.00 × 10−7–1.00 × 10−2 | 8.20 × 10−8 | River water | [131] |