Research Article
Stability Indicating HPTLC Method for Analysis of Rifaximin in Pharmaceutical Formulations and an Application to Acidic Degradation Kinetic Study
Table 1
Linear regression parameters for rifaximin by HPTLC method.
| Parameters | Rifaximin |
| Linearity rangea (ng/band) | 400–3200 | Correlation coefficient () | | Slope ± SD () | | Confidence limit of slopec | 4.76–4.91 | Intercept ± SD () | | Confidence limit of interceptc | 197.40–420.18 | Limit of detection (ng/band) | 61.25 | Limit of quantitation (ng/band) | 185.59 | Bartlett’s testb () | 0.267 |
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replicates, bcalculated value less than critical value , and c95% confidence limit.
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