Table 2 Recovery and precision test of the developed HPLC analysis method
| Studied drug |
Measured concentrations (μg/mL) |
Accuracy % | Precision RSD (%) | |
|---|---|---|---|---|
| Intra-day | Inter-day | |||
| Etacrynic acid | 40.0 | 98.3 | 0.9 | 1.5 |
| 50.0 | 97.7 | 0.5 | 0.4 | |
| 60.0 | 100.4 | 0.1 | 0.5 | |
| Torasemide | 40.0 | 96.7 | 0.4 | 0.7 |
| 50.0 | 99.1 | 0.3 | 0.8 | |
| 60.0 | 99.6 | 1.5 | 0.9 | |
| Furosemide | 40.0 | 100.6 | 0.5 | 1.3 |
| 50.0 | 102.1 | 0.2 | 1.2 | |
| 60.0 | 98.3 | 1.2 | 2.3 | |
| Azosemide | 40.0 | 97.2 | 0.6 | 1.5 |
| 50.0 | 98.2 | 0.3 | 0.6 | |
| 60.0 | 98.4 | 0.9 | 0.5 | |
| Bumetanide | 40.0 | 97.5 | 1.3 | 1.7 |
| 50.0 | 100.8 | 0.8 | 1.9 | |
| 60.0 | 99.6 | 0.7 | 1.4 | |