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A simple, sensitive, precise and rapid high performance thin layer chromatographic (HPTLC) method has been developed for the quantitative estimation of abacavir sulphate and lamivudine in tablet dosage form. Abacavir sulphate and lamivudine were chromatographed on silica Gel 60 GF-254 TLC plate. The solvent system selected was methanol:acetone:n-butyl acetate in the ratio of 1:1:2 (v/v/v) and scanning was carried out in the absorbance mode at 284 nm. The spots were found compact for abacavir sulphate with Rf value of 0.58 and for lamivudine with Rf value of 0.35. Linearity of abacavir sulphate and lamivudine were in the range of 240-1200 ng/spot and 120-600 ng/spot, respectively with acceptable value of correlation coefficient. The method was validated for accuracy, precision, robustness and recovery studies. The limit of detection and quantification for abacavir sulphate were obtained 0.691 and 2.093 ng/spot, respectively, while for lamivudine 1.114 and 3.376 ng/spot, respectively. The suitability of this HPTLC method for quantitative determination of abacavir sulphate and lamivudine was proved by validation in accordance with the ICH guidelines. The developed method can be successfully applied in the routine analysis of commercial pharmaceutical tablets.


Abacavir Sulphate, Lamivudine, HPTLC, Method Development and Validation.
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