RESUMO
Se estudió la estabilidad de las tabletas de clorodiazepóxido 10 mg que fueron elaboradas con un almidón modificado (GECLYN-ER2) de bajo costo en sustitución de la gelatina, aglutinante tradicional. Se emplearon como métodos analíticos para la cuantificación e identificación de clorodiazepóxido: cromatografía líquida de alta resolución, cromatografía en capa delgada y espectrofotometría. Los resultados obtenidos para las tabletas expuestas en condiciones variables de temperatura, humedad y de vida en estante confirman la factibilidad del empleo de este almidón, modificado para la fabricación de las tabletas de clorodiazepóxido 10 mg.
The stability of chlordiazepoxide 10 mg tablets, which were made with low cost modified starch (GECLYN-ER2) to substitute gelatine, the traditional agglutinant, was studied. The following analytical methods were used for the quantification and identification of chlordiazipoxide: high pressure liquid chromatography thin layer chromatography, and spectrophotometry. The results attained for the tablets exposed to different conditions of temperature, humidity and shelf life confirmed the feasibility of this starch that was modified to make chlordiazepoxide 10 mg tablets.
RESUMO
Objective To establish a method for the determi nation of emodin and chrysophanic acid in Compound Rhubarb Spray by HPLC.Methods The ODS column was applied.methanol∶water(87∶13)served as mobile phase.The detectio n wavelength was at 254nm and the flow r ate was 0.65ml /min.Results The average recovery of emodin was 99.48%with relative standard deviation being 1.75%(n=9)and the average recovery of chrysoph anic acid was 101.46%with rela-tive standard deviation being 2.85%(n=9).Conclusion The method was simple,rapid and reli able.It is suitable for the quality control of Compound Rhubarb Spray.