Monitoring of the photochemical stability of carvedilol and its degradation products by the RP-HPLC method
| Autor: | Stojanović Jelena, Vladimirov Sote, Marinković Valentina, Veličković Dragan, Sibinović Predrag |
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| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Journal of the Serbian Chemical Society, Vol 72, Iss 1, Pp 37-44 (2007) |
| Druh dokumentu: | article |
| ISSN: | 0352-5139 1820-7421 |
| DOI: | 10.2298/JSC0701037S |
| Popis: | A sensitive, selective, precise and stability-indicating, new high-performance liquid chromatographic method for the analysis of carvedilol both as a bulk drug and in formulations was developed and validated. As the method could effectively separate the drug from its degradation products, it can be employed as a stability-indicating one. The method was validated for linearity, selectivity, precision, robustness, LOD, LOQ and accuracy. The chromatographic separation was achieved on a Chromolit RP8e, 100x4.6 mm, analytical column. The mobile phase consisted of a mixture of acetonitrile and water (45:55, V/V) (pH 2.5), pH adjusted with formic acid. The absorbance was monitored with a UV detector at 280 nm and the temperature of the analyses was 40°C. The flow rate was 0.5 mL/min. The linearity (r≥ 0.999), reproducibility (0.68-1.27 %) and recovery (99.71-101.58) were found to be satisfactory. This method enables the simultaneous determination of carvedilol and its degradation products, as well as stability. . |
| Databáze: | Directory of Open Access Journals |
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