Table 3.
Analytical data for electrooxidation of dopamine at graphene-modified electrodes
| Electrode | Method | Interferents | Linearity (mol L−1) | Sensitivity (mA mol−1 L) | Detection limit (mol L−1) | Ref. |
|---|---|---|---|---|---|---|
| PPy/GR/GC | CV | AA | 5 × 10−7–1 × 10−5 | 94 | 1 × 10−7 | [81] |
| Qu/GR/GC | DPV | AA, UA, others | 3 × 10−8–4 × 10−4 | – | 1 × 10−8 | [82] |
| GR/CFE | CV | AA, UA | 1 × 10−8–1 × 10−4 | – | 1 × 10−8 | [83] |
| PPy/rGO/GC | DPV | AA, UA | 1 × 10−7–1.5 × 10−4 | – | 2.3 × 10−8 | [84] |
| TCPP/GR/GC | DPV | AA, UA | 1 × 10−7–1 × 10−6 | – | 2.2 × 10−8 | [85] |
| EDTA/GR/Nafion/GC silanized | DPV | AA | 2 × 10−7–2.5 × 10−6 | – | 1 × 10−8 | [86] |
| GR/GC | DPV | AA | 4 × 10−6–1 × 10−4 | – | 2.64 × 10−6 | [87] |
| β-CD/GR/GC sheet | CV | AA | 9 × 10−9–1.3 × 10−5 | – | 5 × 10−9 | [88] |
| GR-Chit/GC | CV | AA, UA | 5 × 10−6–2 × 10−4 | – | – | [89] |
GR, graphene; rGO, reduced graphene oxide; GC, glassy carbon; CF, carbon fiber; PPy, polypyrrole; β-CD, β-cyclodextrin; Chit, chitosan; Qu, quercetin; TCPP, meso-tetra(4-N,N,N,N-trimethlanilinium)porphyrin