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Analysis of miconazole and econazole in pharmaceutical formulations by derivative UV spectroscopy and liquid chromatography (HPLC). 1989

V Cavrini, and A M Di Pietra, and R Gatti
Department of Pharmaceutical Sciences, University of Bologna, Italy.

Methods based on derivative UV spectrophotometry and high-performance liquid chromatography (HPLC) have been developed for the selective determination of miconazole and econazole in pharmaceutical dosage forms. A solid-phase extraction (SPE) procedure using a diol column gave quantitative drug extraction from formulated creams and provided purified sample solutions suitable for assay by the derivative UV spectrophotometric and HPLC methods. The proposed methods gave comparable accurate results, whereas a conventional UV spectrophotometric method was found to be seriously affected by excipients.

UI MeSH Term Description Entries
D007202 Indicators and Reagents Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499) Indicator,Reagent,Reagents,Indicators,Reagents and Indicators
D008825 Miconazole An imidazole antifungal agent that is used topically and by intravenous infusion. Brentan,Dactarin,Miconasil Nitrate,Miconazole Nitrate,Monistat,R-14,889,Nitrate, Miconasil,Nitrate, Miconazole,R 14,889,R14,889
D009824 Ointments Semisolid preparations used topically for protective emollient effects or as a vehicle for local administration of medications. Ointment bases are various mixtures of fats, waxes, animal and plant oils and solid and liquid hydrocarbons. Ointment,Paste,Pastes,Salve,Unguent,Salves,Skin Ointment,Unguents,Ointment, Skin
D011208 Powders Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in which substances are administered. (From Dorland, 28th ed) Powder
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D004464 Econazole An imidazole derivative that is commonly used as a topical antifungal agent. Econazole Nitrate,Ekonazole,Gyno-Pervaryl 150,Gyno-Pevaril,Gyno-Pevaryl,Pevaryl,Gyno Pervaryl 150,Gyno Pevaril,Gyno Pevaryl,GynoPevaril,Nitrate, Econazole
D013056 Spectrophotometry, Ultraviolet Determination of the spectra of ultraviolet absorption by specific molecules in gases or liquids, for example Cl2, SO2, NO2, CS2, ozone, mercury vapor, and various unsaturated compounds. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Ultraviolet Spectrophotometry

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