Table 1.
The influence of different interferents on the detection ability of tartrazine by TiO2–ErGO–GCE.
| Interferents | Peak Currents ipa (μA) |
|---|---|
| Without interferents (10 μmol/L of tartrazine) | 36.73 |
| Glucose (100-times concentration) | 36.80 |
| Benzoic acid (100-times concentration) | 36.30 |
| Citric acid (100-times concentration) | 36.27 |
| Na+ (100-times concentration) | 36.69 |
| K+ (100-times concentration) | 36.75 |
| Fe3+ (100-times concentration) | 36.71 |
| Amaranth (10-times concentration) | 36.54 |
| Sunset yellow (10-times concentration) | 36.60 |