A rapid, simple and reproducible high performance liquid chromatographic method was developed and validated for determination of fluconazole in human plasma. The separation was performed on MZ C8 column (125 x 4 mm, 5 µm) using acetonitrile - potassium dihydrogen phosphate buffer (15 : 85, v/v), pH 3.0, as the mobile phase at a flow rate of 1.5 mL/min. The wavelength was set at 261 nm. The assay enables the measurement of fluconazole for therapeutic drug monitoring with a minimum quantification limit of 20 ng/mL. The method involves simple, protein precipitation procedure and analytical recovery was complete. The calibration curve was linear over the concentration range 0.1-4 µg/mL. The coefficients of variation for inter-day and intra-day assay were found to be less than 10%.
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