Table 3: Effect of co-existing compounds in the amperometric determination of 0.2 μM of AA with the proposed electrode.
| Interference | Concentration (μM) | Variation of amperometric peak (%) |
| Dopamine | 25 | 0.83 |
| Uric acid | 20 | 1.5 |
| Glucose | 20 | 4.5 |
| Sucrose | 20 | 1.2 |
| Cysteine | 20 | 4.1 |
| Tryptophan | 20 | 5 |
| Vitamin B1 | 20 | 2.7 |
| Vitamin B6 | 20 | 3.8 |
| Oxalic acid | 20 | 2.8 |