Table of Contents
Chromatography Research International
Volume 2014, Article ID 307430, 5 pages
http://dx.doi.org/10.1155/2014/307430
Research Article

Method Development and Validation for Determination of Febuxostat from Spiked Human Plasma Using RP-HPLC with UV Detection

School of Pharmaceutical Sciences, Jaipur National University, Jaipur-Agra Bypass, Near New RTO Office, Jagatpura, Jaipur, Rajasthan 302017, India

Received 18 July 2014; Accepted 12 November 2014; Published 27 November 2014

Academic Editor: Susana Casal

Copyright © 2014 Monita Gide et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A rapid, simple, selective, and specific reverse phase high performance liquid chromatography (RP-HPLC) method with UV detection (315 nm) was developed and validated for estimation of febuxostat from spiked human plasma. The analyte and internal standard (diclofenac) were extracted using LLE with diethyl ether. The chromatographic separation was performed on Shodex C-18-4E (5 μm;  mm) with a mobile phase comprised of methanol : acetate buffer pH 4, 20 mM (90 : 10 v/v), at a flow rate of 1 mL/min. Febuxostat was well resolved from plasma constituents and internal standard. The calibration curve was linear in the range of 250–8000 ng/mL. The heteroscedasticity was minimized by using weighted least square regression with weighing factor of . The intraday and interday %RSD was less than 15. Results of recovery studies prove the extraction efficiency. Stability data indicated that febuxostat was stable in plasma after three freeze thaw cycles and upon storage at −20°C for 30 days.