TY - JOUR A2 - Bih, Lahcen AU - Choudhari, Vishnu P. AU - Parekar, Sanket R. AU - Chate, Subhash G. AU - Bharande, Pradeep D. AU - Singh, Rajiv R. AU - Kuchekar, Bhanudas S. PY - 2013 DA - 2012/10/04 TI - Development and Validation of UV-Visible Spectrophotometric Baseline Manipulation Method for Simultaneous Quantitation of Tenofovir Disoproxil Fumarate and Emtricitabine in Pharmaceutical Dosage Form SP - 146580 VL - 2013 AB - A simple, economical, precise, and accurate new UV-visible spectrophotometric baseline manipulation method for simultaneous determination of tenofovir disoproxil fumarate (TE) and emtricitabine (EM) in combined tablet dosage form has been developed. The method is based on baseline manipulation (difference) spectroscopy where amplitudes at 261 and 289.9 nm were selected to determine TE and EM, respectively, in combined formulation, and distilled water was used as solvent. Both drugs obey Beer’s law in the concentration ranges of 4–20 μg/mL for TE and 6–30 μg/mL for EM. The results of analysis have been validated statistically, and recovery studies confirmed the accuracy of the proposed method which was carried out by following the ICH guidelines. SN - 2314-4920 UR - https://doi.org/10.1155/2013/146580 DO - 10.1155/2013/146580 JF - Journal of Spectroscopy PB - Hindawi Publishing Corporation KW - ER -