Abstract
Abstract Objective The aim of current study was the development and validation of a reversed-phase high-pressure liquid chromatography (RPHPLC) method for the quantitative determination of two active ingredients, isohydrafural (IHF) and methyluracil (MU) in fixed dose combination ear drops. Methods: An efficient separation of the two compounds was achieved on a Teknokroma C1 5μm (150*4,6mm) column, with a methanol: water 60:40 (V: V) mobile phase, at 300C temperature and 0.6 mL/min flow-rate. The total analysis time was 5.5 min. Result: The verified validation parameters were: linearity, selectivity, specificity, precision (repeatability and reproducibility), robustness, limit of detection and quantification. Conclusions: Good separation and lack of interference from other chromatographic peaks, rapidanalysis times were obtained. The newly developed chromatographic method can be applied for the analysis of fixed dose combination ear drops with isohydrafural and methyluracil.
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