Table 3.
Comparison of some electroanalytical methods of determination of AA.
| Type of electrode | Pharmaceutical sample | Linear range / μ M | LOD / μ M | Reference |
| CoHCF | Tablet | 55.2-32300 | 33.3 | (43) |
| PtAu film | Injection solution, tablet | 103-1650 | 103 | (44) |
| Carbon-nanofiber | - | 2.0-64 | 2.0 | (45) |
| Poly (vinyl alcohol) | - | 10.0-250 | 7.6 | (46) |
| Tin hexacyanoferrate | - | 400-50000 | - | (47) |
| Mesoporous carbon/Nafion | 40-800 | 0.5 | (48) | |
| Oxidized glassy carbon electrode | - | 197-988 | - | (49) |
| Silver hexacyanoferrate nanoparticles | - | 4.0-78 | 0.42 | (50) |
| Nickel hexacyanoferrate-modified Al | Tablet, ampoule, syrup | 2-200 | 2 | (51) |
| Multi-walled carbon nanotubes-chitosan | Tablet | 1-400 | 0.8 | (52) |
| Co(II) phthalocyanine-multi-walled carbon nanotubes | - | 10-2600 | 1.0 | (53) |
| Single-walled carbon nanotube-modified carbon-ceramic | Tablet | 5.0-700.0 | 3.0 | (54) |
| Pyrolytic graphite electrodes modified in dopamine solution | - | 25-500 | 13 | (55) |
| Graphene oxide-CoHCF nanocomposite | Tablet, ampoule, sachet | 2.5-62.5 | 0.29 | (This work) |