A rapid RP-HPLC stability-indicating method development and validation of moxifloxacin hydrochloride-related
Krishna Rao Vankalapati1, Pallavi Algete1, Sathyanarayana Boodida1
1Department of Chemistry, JNTUH College of Engineering Jagitial, Nachupally (Kondagattu), India.
Abstract:
A reversed-phase high-performance liquid chromatography (RP-HPLC) method was developed and validated for the identification and quantification of moxifloxacin hydrochloride-related substances in finished dosage forms. Chromatographic separation was achieved on an Agilent C18 column (150 × 4.6 mm, 5 μm) with the mobile phase (0.01 M potassium dihydrogen orthophosphate as buffer and methanol in the ratio of 70:30) eluted in isocratic mode. The HPLC flow rate was 1.0 mL min-1 , and peaks were monitored at 230 nm using a photodiode array (PDA) detector. The column temperature was kept constant at 30°C, and the injection volume was 10 μL. The run time of the method was 16 min. The method was validated as per the International Conference on Harmonization (ICH) guidelines. Linearity was recorded at various concentrations ranging from 0.25 to 1.5 μg mL-1 for all the moxifloxacin impurities. Linearity, regression value, recovery, %relative standard deviation (RSD) of method precision values were found within the acceptance limits. The method for related substances (RS) in moxifloxacin was found to be specific, linear, accurate, precise, rugged, and robust. The validated method was suitable for the quantification of the RSs in moxifloxacin drug products. The method was applied in quality control lab for the analysis of moxifloxacin impurities in stability analysis.
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