Research Article
Utility of p-Chloranilic Acid and 2,3-Dichloro-5,6-dicyano-p-benzoquinone for the Spectrophotometric Determination of Rizatriptan Benzoate
Table 6
Results of recovery study by standard addition method.
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Tablets studied | Method A | Method B | RTB in tablets, μg mL−1 | Pure RTB added, μg mL−1 | Total found, μg mL−1 | Pure RTB recovered, Percent ± SD | RTB in tablets, μg mL−1 | Pure RTB added, μg mL−1 | Total found, μg mL−1 | Pure RTB recovered, Percent ± SD |
| | 69.83 | 35.0 | 105.09 | 100.7 ± 1.98 | 20.22 | 10.0 | 30.32 | 101.0 ± 1.75 | Rizora 10 | 69.83 | 70.0 | 140.55 | 101.0 ± 1.40 | 20.22 | 20.0 | 40.78 | 102.8 ± 0.57 | | 69.83 | 105.0 | 176.81 | 101.9 ± 1.00 | 20.22 | 30.0 | 50.62 | 101.3 ± 0.51 |
| | 70.62 | 35.0 | 106.38 | 102.2 ± 1.32 | 20.20 | 10.0 | 30.35 | 101.5 ± 0.49 | Rizora 5 | 70.62 | 70.0 | 142.12 | 102.1 ± 0.85 | 20.20 | 20.0 | 40.83 | 103.2 ± 0.87 | | 70.62 | 105.0 | 176.75 | 101.1 ± 1.69 | 20.20 | 30.0 | 50.75 | 101.8 ± 0.51 |
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*Mean value of three determinations.
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