| Pure solutions |
Official (1) method |
Sensor 1 |
Sensor 2 |
Sensor 3 |
| Taken (mg) |
|
Recovery (%) |
R.S.D.% |
Recovery (%) |
R.S.D.% |
Recovery (%) |
R.S.D.% |
| 4.74 |
|
99.21 |
1.11 |
98.84 |
0.53 |
99.18 |
0.27 |
| 7.11 |
99.53 |
0.85 |
98.75 |
0.38 |
99.25 |
0.33 |
| 14.20 |
99.00 |
0.97 |
98.55 |
0.47 |
99.78 |
0.78 |
| X ± S.E. |
98.5 ± 0.5 |
99.25 ± 0.05 |
98.71 ± 0.12 |
99.40 ± 0.09 |
| F value |
|
1.85 |
2.05 |
1.45 |
| t value |
2.74 |
2.93 |
1.89 |
| Praxilene (200 mg) |
| 4.74 |
|
99.85 |
0.76 |
98.23 |
0.87 |
100.58 |
0.54 |
| 7.11 |
|
100.54 |
0.25 |
98.66 |
1.05 |
101.89 |
0.93 |
| 14.20 |
|
101.25 |
0.35 |
98.47 |
1.25 |
101.25 |
0.36 |
| X ± S.E. |
101.7 ± 0.5 |
100.55 ± 0.05 |
98.45 ± 0.52 |
101.24 ± 0.14 |
| F value |
|
2.51 |
1.81 |
1.37 |
| t value |
|
1.39 |
1.55 |
0.76 |
| Spiked Plasma |
| X ± S.E. |
|
101.95 ± 0.50 |
101.70 ± 0.35 |
101.20 ± 0.15 |
| F value |
0.84 |
1.23 |
0.44 |
| t value |
0.73 |
1.09 |
0.39 |
| Spiked Urine |
| X ± S.E. |
|
101.50 ± 0.25 |
101.65 ± 0.42 |
101.25 ± 0.33 |
| F value |
1.36 |
1.68 |
1.34 |
| t value |
0.68 |
1.74 |
1.53 |
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 (1) British Pharmacopoeia
(Non-aqueous titration with 0.1 M perchloric acid) |
