Abstract
ObjectiveThe aim of present work was to develop a gradient RP-HPLC method for simultaneous analysis of rosiglitazone and gliclazide, in a tablet dosage form. MethodChromatographic system was optimized using a hypersil C18 (250mm × 4.6mm, 5μm) column with potassium dihydrogen phosphate (pH-7.0) and acetonitrile in the ratio of 60:40, as mobile phase, at a flow rate of 1.0 ml/min. Detection was carried out at 225 nm by a SPD-20A prominence UV/Vis detector. ResultRosiglitazone and gliclazide were eluted with retention times of 17.36 and 7.06 min, respectively. Beer's Lambert's Law was obeyed over the concentration ranges of 5 to 70 μg/ml and 2 to 12 μg/ml for rosiglitazone and gliclazide, respectively. ConclusionThe high recovery and low coefficients of variation confirm the suitability of the method for simultaneous analysis of both drugs in a tablets dosage form. Statistical analysis proves that the method is sensitive and significant for the analysis of rosiglitazone and gliclazide in pure and in pharmaceutical dosage form without any interference from the excipients. The method was validated in accordance with ICH guidelines. Validation revealed the method is specific, rapid, accurate, precise, reliable, and reproducible.
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