Research Article
A New Electrochemical Sensor for Direct Detection of Purine Antimetabolites and DNA Degradation
Table 2
Comparison of the Gr- (or GrO-) based sensors proposed for the determination of thiopurines by using adsorptive stripping voltammetry.
| Compound | Sensor | Sensitivity (μA/μmol·L−1) | Linear range (μmol·L−1) | LOD (μmol·L−1) | tacc (s) | Reference |
| AZTP | Gr-Chit/GCE | 0.46 | 0.1–2.0 | 0.05 | 120 | [39] | Ag-Gr/GE | 4.74 | 0.7–100 | 0.07 | 50 | [40] | GrO-IL-AuNPs-Chit/CSE | 2.66 | 0.0–10 | 0.04 | 120 | This work |
| TG | RGrO/CPE | 0.23 | 0.4–50 | 0.07 | 40 | [41] | Poly(neutral red)-ERGrO/PGE | 0.08 | 0.7–475 | 0.12 | 150 | [42] | GrO-IL-AuNPs-Chit/CSE | 4.22 | 0.0–10 | 0.02 | 120 | This work |
| MP | [Co(phen)3]3+/GrO-DNA/GCE | 0.29 | 0.05–2.0 | 0.02 | | [43] | GrO-IL-AuNPs-Chit/CSE | 2.79 | 0.0–20 | 0.03 | 120 | This work |
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GE: graphite electrode; GCE: glassy carbon electrode; CPE: carbon paste electrode; PGE: pencil graphite electrode.
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