Research Article
Utility of p-Chloranilic Acid and 2,3-Dichloro-5,6-dicyano-p-benzoquinone for the Spectrophotometric Determination of Rizatriptan Benzoate
Table 4
Robustness and ruggedness.
| Method
| RTB taken, μg mL−1 | Method robustness | Method robustness |
Parameter altered | Reagent volume, mLa | Interanalysts
| Intercuvettes | RSD, % ( = 3) | RSD, % ( = 4) | RSD, % ( = 4) |
| Method A | 70.0 | 0.9 | 1.7 | 1.5 | 140.0 | 1.3 | 1.3 | 1.2 | 210.0 | 1.0 | 1.1 | 1.3 |
| Method B | 20.0 | 1.0 | 1.0 | 1.6 | 40.0 | 1.1 | 1.5 | 1.6 | 60.0 | 1.4 | 1.6 | 1.4 |
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aVolumes of reagent were 1 ± 0.1 mL.
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