Research Article
Dual Wavelength Spectrophotometric Method for Simultaneous Estimation of Atorvastatin Calcium and Felodipine from Tablet Dosage Form
Table 5
Result of intraday precision.
| Day 1 | Label claim (mg/tablet) | Amount added (%) | Total amount added (mg) | Concentration recovered* (mean ± SD) | % recovery estimated* (mean ± %SD) |
| Morning | ATR 10 | 80 | 8 | 8.04 ± 0.30 | 100.22 ± 1.12 | 100 | 10 | 10.10 ± 0.34 | 97.10 ± 0.57 | 120 | 12 | 12.13 ± 0.44 | 102.79 ± 1.52 | FEL 10 | 80 | 8 | 8.27 ± 1.47 | 101.80 ± 1.74 | 100 | 10 | 10.56 ± 1.78 | 101.32 ± 1.04 | 120 | 12 | 12.90 ± 1.28 | 99.99 ± 0.91 |
| Evening | ATR 10 | 80 | 8 | 8.08 ± 1.18 | 101.64 ± 1.17 | 100 | 10 | 10.04 ± 1.55 | 101.40 ± 1.87 | 120 | 12 | 12.05 ± 0.28 | 101.55 ± 1.13 | FEL 10 | 80 | 8 | 8.11 ± 1.54 | 101.28 ± 0.45 | 100 | 10 | 10.14 ± 1.17 | 99.68 ± 0.56 | 120 | 12 | 12.99 ± 1.98 | 99.46 ± 0.98 |
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*Indicates ± SD ().
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