Interference study for the determination of 15.0 μM levodopa + 10.0 μM piroxicama.
| Interference | Levodopa | Piroxicam |
|---|---|---|
| Ascorbic acid | 500 | 800 |
| Alanine | 1000 | 900 |
| Histidine | 1000 | 1000 |
| Uric acid | 150 | 700 |
| Aspartic acid | 650 | 800 |
| Li+, Na+, Cl−, Br− | 1000 | 1000 |
The reported amount in the table is based on tolerance limits (W/W).