alexa DEVELOPMENT AND VALIDATION OF RAPID UHPLC METHOD FOR DETERMINATION OF RISPERIDONE AND ITS IMPURITIES IN BULK POWDER AND T ABLETS
Chemical Engineering

Chemical Engineering

Journal of Chromatography & Separation Techniques

Author(s): T Nejedly, P Pilarova, P Kastner, Z Blazkova, J Klimes

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The aim of this study was to develop a new, rapid and highly sensitive UHPLC method with UV detection for simultaneous determination of risperidone and four other related substanc es possibly present in tablets. The active substance, risperidone, is the most frequently used atypical antipsychotic drug for a treatment of schizophrenia, bipolar disease and behavioral disorders in young patients, up to 17 years of age. The study is bas ed on main impurities specified in USP35 and Ph. Eur. 7 (Imp A, B, C, and E). Tablet sample preparation was very rapid and consisted of dissolution, sonication and filtration through a 0.22 μm membrane filter. The newly developed method is based on an innovative UHPLC that provides excellent separation efficiency within a very short analysis time. Binary gradient was optimized using RP - 18 chromatographic column (100 mm × 3.5 mm, 1.7 μm). Ammonium acetate buffer pH 6.8 and acetonitrile were used as mobi le phases in gradient mode with the flow rate of 0.5 mL· min - 1 and temperature equal to 40 °C. The wavelength of UV detector was set to 260 nm. The developed method allows four times shorter analysis time and consumes twenty two times less solvents compared to conventional HPLC method used by USP35 for a determination of related substances of risperidone in tablets. This method was validated in accordance with ICH requirements included the linearity, precision, accuracy sensitivit y, and specificity.

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This article was published in NTERNATIONAL JOURNAL OF RESEARCH IN PHARMACY AND CHEMISTRY and referenced in Journal of Chromatography & Separation Techniques

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