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A simple, rapid, precise and economical high performance thin layer chromatographic method has been developed and validated for determination of rosiglitazone in its tablet dosage form using caffeine as an internal standard. It was performed on silica gel 60 GF(254) thin layer chromatographic plates as a stationary phase using mobile phase methanol:toluene:chloroform:triethylamine (1:8:0.5:0.5 v/v/v/v) and the detection was carried out in the absorbance mode at 264 nm showing R(f) value 0.31 for rosiglitazone and 0.52 for caffeine. The linear regression data curve shows good linear relationship in the concentration range 1.0-7.0 µg/µl. The content uniformity test was carried out as per USP specification of the content uniformity test of 85-115%. The percent drug estimated of rosiglitazone from two different marketed formulations were found to be in the range 99.83-100.21. The recovery of drugs was carried out by standard addition method were found to be 100.21±1.06 and 100.04±0.30 by height and area respectively. The method was validated with the determination of accuracy, precision, specificity, linearity detector response and ruggedness. The proposed method provides a faster and cost effective quality control tool for routine analysis of content uniformity test for rosiglitazone in tablet formulation.

Validated High Performance Thin Layer Chromatographic Determination and Content Uniformity Test for Rosiglitazone in Tablets