Aim: A lucid, rapid and precise stability-indicating method was developed by using HPLC for the estimation of Buparvaquone in bulk as well as pharmaceutical dosage form by forced degradation studies. Materials and Methods: Princeton C 18 column (4.6 × 150 mm, 5µ) and mobile phase containing 1% glacial acetic acid and acetonitrile in the proportion of 5:95 v/v was used throughout the study. The flow rate was 0.9 ml/m and the detecting wavelength was kept as 251 nm using the PDA detector. Results: The retention time of Buparvaquone was found to be at 8.6 ± 0.5 m. The method developed was validated, as stated in ICH Q2 (R1) guidelines. It was found to be linear within concentration ranging from 2-20 µg/ml having a correlation coefficient 0.999 and other parameters are also under permissible limits. Conclusion: Buparvaquone was exposed to different stress conditions like acidic, basic, neutral, thermal, peroxide and also photolytic. Amongst all, the drug was found to be more degraded under basic as well as peroxide conditions.
Shaikh et al.: Ultraviolet Method Development and Validation for BuparvaquoneA novel, simple, accurate, precise, economical and reliable ultraviolet spectrophotometric method has been developed for the estimation of buparvaquone in bulk and in pharmaceutical dosage form. The drug shows maximum absorption at 251 nm by using acetonitrile as solvent. The method was validated as stated in International Council for Harmonisation Q2 (R1) guidelines. It obeys Beer's law in the concentration range of 2-20 µg/ml with correlation coefficient of 0.998. The drug shows great accuracy close to 100 %. The method was found to be robust and precise as the relative standard deviation are less than 2 %. Limit of detection and limit of quantitation were found to be 0.60 µg/ml and 1.83 µg/ml respectively. From the results of specificity, the drug was found to be more degraded under alkaline, oxidative and photolytic conditions. The proposed method can be employed for the reliable quantification of buparvaquone in bulk and routine analysis of pharmaceutical formulations.
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