Objective: The objective of this investigation was to develop and validates a new, rapid, accurate high performance liquid chromatographic (HPLC) method for the quantification of besifloxacin hydrochloride.
Materials and Methods:Isocratic ultraviolet (UV)-HPLC separation was performed using a Zodiac C18 (150 mm × 4.6 mm) column, with 150 volume of acetonitrile and 350 ml of methanol in 500 ml buffer as mobile phase at a flow rate of 2 ml/min and UV detection at 295 nm.
Results:The sample found stable for 24 hrs in analyte solution and compatible with a nylon filter. The Beer's law plots were found to be linear over the concentration range 70-130% with a correlation coefficient (r 2 ) 0.9999 in diluent, phosphate buffer, and simulated tear media. The % relative standard deviation was found <2% shows good precision, acceptable accuracy, and reproducibility of the new method for the determination of besifloxacin hydrochloride.
Conclusion:The method was validated as per the ICH guidelines. The method is accurate and can be applied for qualitative analysis of besifloxacin hydrochloride in bulk drug and in formulation.
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