| Pure solution |
Tablet |
| Method |
X ± S.E. |
Relative error (%) |
F3.3 value (9.28) |
X ± S.E. |
Relative error (%) |
F3.3 value (9.28) |
| Official method(35) |
98.0 ± 0.50 |
0.851 |
|
97.0 ± 0.6 |
0.90 |
|
| Method (I) |
99.2 ± 0.11 |
0.891 |
0.785 |
98.6 ± 0.112 |
0.621 |
0.566 |
| Method (II) |
99.5 ± 0.46 |
0.624 |
0.748 |
98.9 ± 0.013 |
0.651 |
0.901 |
| Method (III) |
99.7 ± 0.06 |
0.339 |
0.806 |
99.5 ± 0.372 |
0.917 |
0.739 |
| Spiked urine |
Spiked human serum |
| Official method(35) |
98.0 ± 0.44 |
0.822 |
|
98.1 ± 0.2 |
0.911 |
|
| Method (I) |
98.7 ± 0.73 |
0.621 |
0.625 |
98.5 ± 0.035 |
0.481 |
0.577 |
Method (I): The standard addition method
Method (II): The Calibration curve method
Method (III): The Potentiometric titrations method
X ± S.E: Recovery ± standard error
F- tabulated is 6.39 at 95.0% confidence limit
t- tabulated at 99.0% confidence limit and 6 degrees of freedom |
