Table VI.
Intra-day Precision Data of the HPLC Stability-Indicating Assay Method
| Conc. (µg/mL) | Inter-day precision | ||||
|---|---|---|---|---|---|
| Day 1 | Day 2 | Day 3 | Mean | SD | |
| 2 | 337,601 | 332,492 | 339,851 | 336,648 | 3,770.92 |
| 4 | 676,802 | 673,062 | 675,027 | 674,963.67 | 1,870.80 |
| 6 | 1,006,523 | 1,006,634 | 1,003,078 | 1,005,411.6 | 2,021.78 |
| 8 | 1,320,312 | 1,321,855 | 1,326,038 | 1,322,735.0 | 2,962.69 |
| 10 | 1,619,451 | 1,618,152 | 1,610,757 | 1,616,120.0 | 4,689.69 |
| Slope (±SD) | 160,333 ± 680 | ||||
| RSD (%) = 0.4 | |||||
| R (±SD) | 0.9988 ± 0.0005 | ||||
| RSD (%) = 0.05 | |||||
R correlation coefficient, SD standard deviation, RSD relative standard deviation