DEVELOPMENT AND VALIDATION OF A RP-HPLC METHOD FOR THE SIMULTANEOUS DETERMINATION OF CURCUMIN, PIPERINE AND CAMPHOR IN AN AYURVEDIC FORMULATION
DOI:
https://doi.org/10.22159/ijpps.2018v10i4.25216Keywords:
Curcumin, Piperine, Camphor, Ayurvedic formulation, RP-HPLC, Validation, ICHAbstract
Objective: To develop a novel, accurate, precise and linear reverse phase high performance liquid chromatographic (RP-HPLC) method for simultaneous qualitative and quantitative estimation of curcumin, piperine and camphor in an ayurvedic formulation and validate as per international conference on harmonization (ICH) guidelines.
Methods: In the present work, good chromatographic separation was achieved isocratically using a shim-pack HPLC C18 column (4.6 x 250 mm, 5μm) and mobile phase consisting of 0.02 M potassium dihydrogen orthophosphate buffer (pH adjusted to 3.5 with orthophosphoric acid) and acetonitrile in the ratio 40:60, at flow rate of 1 ml/min and column temperature maintained at 35 °C. The effluents obtained were monitored at 255 nm with UV-visible detector.
Results: The retention time of curcumin, piperine and camphor was found to be 6.57 min, 7.32 min and 8.57 min respectively. Linearity of curcumin and camphor were found in the range of 4-8 ppm and that of piperine was found to be 5-9 ppm. The correlation coefficient for curcumin, piperine and camphor were 0.998, 0.99 and 0.994 respectively. The high recovery values (98 %-102 %) indicate a satisfactory accuracy. The low percent relative standard deviation (% RSD) values in the precision study reveals that the method is precise.
Conclusion: The developed method is novel, simple, precise, rapid, accurate and reproducible for simultaneous quantitative estimation of curcumin, piperine and camphor in an ayurvedic formulation. Hence the developed method can be used for quantitative analysis and quality control of extracts and commercial samples of other species containing these three markers.
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