HIGH PERFORMANCE LIQUID CHROMATOGRAPHY ASSAY FOR DETERMINATION OF MOXIFLOXACIN IN HUMAN PLASMA

Luong Thi My Hanh, Nguyen Thi Minh Diep, Pham Thi Ngoc Mai, Nguyen Xuan Truong

Abstract


A simple reversed phase HPLC method with UV detection has been successfully developed and validated for determination of moxifloxacin in human plasma. The sample pretreatment involves only single-step protein precipitation with tricloroacetic acid. Moxifloxacin was measured in plasma using a validated HPLC method with UV detector at 295 nm, C18 column (25cm×4.5mm, 5µm), a mixture of phosphate buffer pH 4.0 and acetonitrile (70:30, v/v) as mobile phase at a flow rate of 0.8 ml/min. Retention time of moxifloxacin was found to be 7.4 min. The mean recovery for the drug was obtained 97.30%. The calibration curve was linear over the concentration range of 0.3 to 25.0 µg/mL with coefficient correlation of 0.9991. This method was successfully applied for therapeutic drug monitoring.

Keywords


Moxifloxacin, protein precipitation, tricloroacetic acid, HPLC method, human plasma

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References


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DOI: https://doi.org/10.15625/2525-2518/57/3/13362 Display counter: Abstract : 191 views. PDF : 68 views.

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