Simple Spectrophotometric Method for Estimation of Raltegravir Potassium in Bulk and Pharmaceutical Formulations.

ABSTRACT

A simple, rapid, precise, and economical spectrophotometric method has been developed for quantitative analysis of Raltegravir Potassium (RALP) in tablet formulations. The stock solution of RALP was prepared in water. The standard solution of RALP in water showed absorption maxima at 331.6 nm. The drug obeyed Beer–Lambert’s law in the concentration range of 1–100 μg/mL with coefficient of correlation (R2) was 0.9999. It showed coefficient of variation below 2 % in intra-run and inter-run precision. The recovery was obtained with values close to the 100 % of theoretical at three different concentrations. The results of analysis have been validated as per ICH guidelines. The method can be adopted in routine analysis of RALP in bulk and tablet dosage form and it involves water as a solvent and no complex extraction techniques.