Table 1 Regression equation, correlation coefficient (r), linear range and detection limit of the five diuretic drugs
Studied drug | Regression Equation | r | (Linear Range)/ (μg·mL−1) | (Detection Limit)/μg·mL−1 |
|---|---|---|---|---|
Etacrynic acid | y = 20.301x − 1.624 | 0.9993 | 2.5–150 | 0.25 |
Torasemide | y = 33.204x + 3.131 | 0.9998 | 2.5–150 | 0.08 |
Furosemide | y = 27.634x − 0.970 | 0.9999 | 2.5–150 | 0.05 |
Azosemide | y = 43.381x + 8.666 | 0.9992 | 2.5–150 | 0.13 |
Bumetanide | y = 36.124x + 1.320 | 0.9999 | 2.5–150 | 0.20 |