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Abstract
A simple, fast, and accurate high‐performance liquid chromatography (HPLC) method was developed to determine latanoprost in pharmaceutical formulations. The drug was chromatographed on a C18 column. Eluents were monitored at a wavelength of 210 nm using a mixture of acetonitrile and 0.05 M potassium phosphate buffer pH 3.0 (70:30, (v/v). A linear response (r>0.9998) was observed in the range of 10.0–90.0 µg mL−1. The method showed good recoveries (average 100.4%) and the relative standard deviations intra‐ and inter‐day were ≤1.0%. The method can be used for quality control assay of latanoprost in raw materials as well as in pharmaceutical formulations.