DEVELOPMENT AND VALIDATION OF RP-HPLC METHOD FOR SIMULTANEOUS ESTIMATION OF CURCUMIN AND PIPERINE
Keywords:Curcumin, Piperine, RP-HPLC, Simultaneous estimation, Nanoparticulate formulation
Objective: The present study was aimed to develop a simple, sensitive and precise high performance liquid chromatographic (HPLC) method for the simultaneous estimation of curcumin and piperine and to implement the developed method for the estimation of curcumin and piperine in the nanoparticulate formulation.
Methods: Method development was performed using various solvent, buffer-solvent ratios, at different flow rates for adequate separation of both drugs. The developed method was validated in accordance with the international conference on harmonization (ICH) guidelines. The developed method was implemented to estimate the amount of curcumin and piperine in the nanoparticulate formulation.
Results: Chromatographical conditions were optimized, and the best chromatographical conditions with adequate resolution for curcumin and piperine was achieved using enable C18G reverse phase column, using a mobile phase combination of acetonitrile and phosphate buffer (pH 3)in a ratio of 70:30 v/v at a flow rate of 1.0 ml/min. The detection was monitored at a wavelength of 360 nm. The retention time of curcumin and piperine was found to be 7.2 min and 8.5 min respectively.
Conclusion: The developed analytical method is simple, precise, and reproducible and thus can be used for simultaneous estimation of curcumin and piperine in pharmaceutical formulations.
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