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首页> 外文期刊>Revista de Ciências Farmacêuticas Básica e Aplicada >Ensaio de dissolu??o de cápsulas de fluconazol: problemas encontrados na determina??o por espectrofotometria na regi?o do UV
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Ensaio de dissolu??o de cápsulas de fluconazol: problemas encontrados na determina??o por espectrofotometria na regi?o do UV

机译:氟康唑胶囊的溶出度试验:紫外分光光度法测定中遇到的问题

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摘要

Entre as classes terapêuticas analisadas no Programa Nacional de Verifica??o da Qualidade de Medicamentos (PROVEME), o antifúngico fluconazol constava na apresenta??o de cápsulas de diferentes procedências. Na realiza??o dos ensaios de dissolu??o conforme as técnicas dos fabricantes, constatou-se que os valores obtidos por espectrofotometria-UV foram superiores aos obtidos nos ensaios de teor e uniformidade de conteúdo, cuja determina??o foi por CLAE-UV. Considerando este fato, foi objetivo deste trabalho realizar o ensaio de dissolu??o destas amostras pelos respectivos métodos dos fabricantes e o quantitativo do ensaio por espectrofotometria no UV e por CLAE-UV, a fim de avaliar as possíveis interferências dos excipientes nestas determina??es. Os valores obtidos por espectrofotometria foram superiores aos obtidos por CLAE, confirmando a interferência dos excipientes. Concluiu-se que a metodologia a ser empregada na análise de fármacos deve ser criteriosamente selecionada, a fim de evitar resultados n?o condizentes com a real formula??o do produto. Palavras-chave: cápsulas de fluconazol, CLAE, dissolu??o, espectrofotometria. ABSTRACT Among the therapeutic classes analyzed in the Programa Nacional de Verifica??o da Qualidade de Medicamentos (PROVEME) consisted the antifungal fluconazole in the dosage form of capsules from different origins. In dissolution tests, according to manufacturers techniques, it was found that the values obtained by UV-spectrophotometry were higher than those obtained from tests of content and content uniformity, whose determination was by HPLC-UV. Considering this fact, the objective of this study was to perform the dissolution test of these samples by the respective manufacturers methods and the quantitative assay by UV-spectrophotometry and HPLC-UV, to evaluate possible interferences of excipients in these determinations. The values obtained by spectrophotometry were higher than those obtained by HPLC, confirming the excipients interference. It was concluded that the methodology to be employed in drug analysis should be carefully selected in order to avoid results not commensurate with the real product formulation.
机译:在国家药品质量验证计划(PROVEME)中分析的治疗类别中,抗真菌药fluconazole包括在不同来源的胶囊中。在按照制造商的技术进行溶出度测试时,发现通过UV分光光度法获得的值高于通过CLAE确定的含量和均匀度测试中获得的值-紫外线考虑到这一事实,这项工作的目的是通过制造商的相应方法对这些样品进行溶出度测试,并通过分光光度法在UV和HPLC-UV中对测试样品进行定量分析,以评估赋形剂在这些测定中可能的干扰。 ?分光光度法获得的值高于HPLC获得的值,证实了赋形剂的干扰。结论是,必须仔细选择用于药物分析的方法,以避免结果与产品的实际配方不一致。关键词:氟康唑胶囊高效液相色谱法溶出分光光度法摘要在国家药物质量验证计划(PROVEME)中分析的治疗类别中,不同来源的胶囊剂型中的抗真菌药fluconazole组成。在溶出度测试中,根据制造商的技术,发现通过紫外分光光度法获得的值高于通过含量和含量均匀性测试获得的值,后者是通过HPLC-UV测定的。考虑到这一事实,本研究的目的是通过相应的制造商方法对这些样品进行溶出度测试,并通过紫外分光光度法和HPLC-UV进行定量测定,以评估赋形剂在这些测定中的可能干扰。分光光度法获得的值高于HPLC获得的值,证实了赋形剂的干扰。得出的结论是,应仔细选择用于药物分析的方法,以避免产生与实际产品配方不相称的结果。

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