| Drugs |
Concentration (μg mL−1) |
Regression equation |
r2 |
LLOD ng mL−1 |
LLOQ ng mL−1 |
| Prazosine |
5-100 |
y= 29490x + 29699 |
0.9999 |
32.8 |
99.4 |
| Amlodipine |
15-300 |
y = 27735x + 18635 |
0.9998 |
30.6 |
92.6 |
| Diltiazem |
10-200 |
y = 29072x + 17699 |
0.9999 |
54.2 |
164.2 |
| Verapamil |
30-600 |
y = 26185x + 39843 |
0.9999 |
29.9 |
90.5 |
|