ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE SIMULTANEOUS ESTIMATION OF CABOTEGRAVIR & RILPIVIRINE BY RP HPLC METHOD
Manjunath S. Y.*, Rukhiya Jabeen and Bairam Ravindar
ABSTRACT
A new method was established for simultaneous estimation of and cabotegravir and rilpivirine by RP-HPLC method. The Phosphate buffer was pH 3.2 and the mobile phase was optimized which consists of Acetonitrile: Phosphate buffer mixed in the ratio of 40:60 % v/ v. A Inertsil ODS C18 (4.6 x 250mm, 5 μm, Make Waters) column used as stationary phase. The detection was carried out using UV detector at 231 nm. The solutions were obtained at a constant flow rate of 1.0 ml/min. The linearity range of cabotegravir and rilpivirine were found to be from 20-- The values of % RSD are less than 2% indicating accuracy and precision of the method. The percentage recovery varies from 98-102% of Cabotegravir and Rilpivirine LOD and LOQ was found to be within limit.
Keywords: Cabotegravir and Rilpivirine, RP-HPLC, Acetonitrile.
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