Comparitive study of UV-Visible spectrophotometry and high performance liquid Chromatography methods for quantitative estimation of paracetamol in a tablet formulation

Abstract

The objective of present study was to analyse the comparision between high performance liquid chromatography(HPLC) and UV-Spectrophotometry for quantitative determination of paracetamol in a marketed formulation. Rp-HPLC method involved a reversed-phase XBD C18 column thermostated at 25C, UV detection at 230nm, flow rate of 1.0ml/min and a mobile phase acetonitrile-water(25:75) was used. These methods showed good linearity over the concentration range of 220 ?g/mL. The linearity was obtained for paracetamol by reverse phase high performance liquid chromatography (RP-HPLC) R2=0.993 and by UV - Spectrophotometry R2=0.977. The precision and recoveries of paracetamol for HPLC and UV-Spectrophotometry methods were in the range of 99.00 -100.10 % and 99.71-100.95 %. Among these two methods high performance liquid chromatography method of analysis showed reliable results for quantitative etermination of paracetamol in a tablet formulation.