Table 4 Precision data of the proposed methods for the determination of ALD in pure form
Parameter | Intra - day precision | Inter - day precision | ||||
|---|---|---|---|---|---|---|
|  | Conc. taken (μg/ml) | Conc. found (μg/ml) | % Found | Conc. taken (μg/ml) | Conc. found (μg/ml) | % Found |
| Â | 5.00 | 4.927 | 98.50 | 5.00 | 4.948 | 98.96 |
Method I | 10.00 | 9.958 | 99.58 | 10.00 | 9.999 | 99.99 |
| Â | 15.00 | 15.022 | 100.17 | 15.00 | 15.138 | 100.92 |
‾x ± SD |  |  | 99.42 ± 0.85 |  |  | 99.96 ± 0.98 |
%RSD | Â | Â | 0.85 | Â | Â | 0.98 |
%Er | Â | Â | 0.49 | Â | Â | 0.57 |
| Â | 12.00 | 11.97 | 99.73 | 12.00 | 11.88 | 98.99 |
Method II | 16.00 | 16.26 | 101.63 | 16.00 | 15.84 | 99.01 |
| Â | 20.00 | 20.42 | 102.13 | 20.00 | 19.96 | 99.81 |
‾x ± SD |  |  | 101.16 ± 1.27 |  |  | 99.27 ± 0.47 |
%RSD | Â | Â | 1.26 | Â | Â | 0.47 |
%Er | Â | Â | 0.73 | Â | Â | 0.27 |
| Â | 3.00 | 2.978 | 99.28 | 3.00 | 2.957 | 98.55 |
Method III | 15.00 | 14.928 | 99.52 | 15.00 | 14.987 | 99.91 |
| Â | 30.00 | 30.096 | 100.32 | 30.00 | 29.926 | 9975 |
‾x ± SD |  |  | 99.71 ± 0.54 |  |  | 99.40 ± 0.74 |
%RSD | Â | Â | 0.54 | Â | Â | 0.74 |
%Er | Â | Â | 0.31 | Â | Â | 0.43 |