Sample
No. |
Taken
(μg/mL) |
Found*
(μg/mL) |
% Recovery |
| |
Nifedipine |
Atenolol |
Atenolol |
Nifedipine |
Atenolol |
Nifedipine |
| 1 |
10 |
40 |
9.98 |
39.93 |
99.84 |
99.83 |
| 2 |
15 |
45 |
15.12 |
45.34 |
100.86 |
100.76 |
| 3 |
20 |
50 |
20.07 |
50.08 |
100.37 |
100.17 |
| 4 |
25 |
55 |
24.97 |
54.39 |
99.90 |
98.90 |
| 5 |
30 |
60 |
30.00 |
59.96 |
100.00 |
99.94 |
| Mean ± SD |
|
100.19 ± 0.380 |
99.92 ± 0.662 |
| % RSD |
|
0.379 |
0.660 |
|
| *Average of 3 determinations. |
| Table 5: Accuracy expressed as % recovery of nifedipine and atenolol in their standard solutions by the proposed HPLC method. |
