VALIDATION OF ASSAY PROCEDURES OF AFOBAZOLEIN MICROCAPSULES
DOI:
https://doi.org/10.22159/ijpps.2017v9i5.16684Keywords:
Afobazole, HPLC, Microcapsules, ValidationAbstract
Objective: The aim of this work was focused on a simple, rapid, accurate and sensitive method for quantitative analysis of afobazole in microcapsules (afb-m) using high-performance liquid chromatography (HPLC) with ultraviolet (UV) detection.
Methods: The analytical procedure was based on the fractionation characteristics of the afobazole in the chromatography column. The chromatography parameters «Zorbax extend-C18» column (150×2.1 mm i.d. 5 µm particle size), at 40 °C. The isocratic mobile phase was 5.0 M ammonium phosphate buffer (pH 7.0): acetonitrile (30:70; v/v) at a flow rate of at 1.0 ml. min-1. The determinations were performed using UV-Vis detector set at 220 nm.
Results: An assay procedure for afb-m has been validated from indices, such as specificity, correctness, precision, and linearity. The registered retention time of the afobazole stock solution and the sample solution was 1.5 min. The determined accuracy of the method was in the range of 99.67%-100.67%. The analytical curve was linear (r2-0.9996) over a wide concentration range (50%-150%). The method showed sufficient precision, with a relative standard deviation (RSD) smaller than 2%.
Conclusion: The HPLC method developed in this study showed specificity and selectivity with linearity in the working range and good precision and accuracy, making it very suitable for quantification of afb-m. The developed assay procedure of afb-m was meeting all the requirements of ICH validation criteria and can be applied for standardisation drug form afb-m.
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