Affiliation:
1. Indore Institute of Pharmacy, Indore (M.P), India.
Abstract
Stability indicating high performance liquid chromatography (HPLC) method was developed for the assay of Tenofovir in bulk and solid dose formulation. The HPLC separation was achieved on kromasil C18 (100mm × 4.6mm, 5 μm) column using a mobile phase of Methanol: Potassium dihydrogen orthophosphate buffer (30:70,v/v) at a flow rate of 1 ml min-1 and UV detection at 260 nm. Peak elutes at 7.33 appropriate. The method was validated for linearity, repeatability, accuracy, precision, robustness, limit of detection and limit of quantification. The accuracy was between 99.14 - 99.97%. The highest R.S.D. amongst interday and Intraday precision was found 0.808 and 0.473 respectively.The assay was linear over the concentration range of 10-50 μg/ml (R≈0. 999). The method was robust as no significant change in chromatographic parameters. LOD and LOQ was found to be 0.90 and 2.71 respectively. The stress studies were performed per ICH guidelines to confirm its Stress testing was carried out in presence of acid, base, hydrogen peroxide, heat and light to demonstrate specificity of the method as per ICH guidelines. The developed method could separate the potential degradation products from the Tenofovir peak. It was concluded that highest degradation occurs in basic condition. This proposed method was suitable and practical for analysis the content of Tenofovir in pharmaceutical products and could be of benefit for the prediction shelf life of Tenofovir in marketed formulations.
Subject
Pharmacology (medical),Pharmacology, Toxicology and Pharmaceutics (miscellaneous)
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