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Development and validation of a liquid chromatography–tandem mass spectrometry method for the determination of febuxostat in human plasma
Author(s) -
Wang Haidong,
Deng Pan,
Chen Xiaoyan,
Guo Lixia,
Zhong Dafang
Publication year - 2013
Publication title -
biomedical chromatography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 65
eISSN - 1099-0801
pISSN - 0269-3879
DOI - 10.1002/bmc.2744
Subject(s) - chemistry , febuxostat , chromatography , analyte , selected reaction monitoring , mass spectrometry , protein precipitation , formic acid , electrospray ionization , tandem mass spectrometry , liquid chromatography–mass spectrometry , ammonium acetate , electrospray , analytical chemistry (journal) , high performance liquid chromatography , uric acid , biochemistry , hyperuricemia
A rapid and sensitive analytical method based on liquid chromatography coupled to tandem mass spectrometry detection with positive ion electrospray ionization was developed for the determination of febuxostat in human plasma using d 7 ‐febuxostat as the internal standard (IS). A simple protein precipitation was performed using acetonitrile. The analyte and IS were subjected to chromatographic analysis on a Capcell PAK C 18 column (4.6 × 100 mm, 5 µm) using acetonitrile–5 m m ammonium acetate–formic acid (85:15:0.015, v/v/v) as the mobile phase at a flow rate of 0.6 mL/min. An Agilent 6460 electrospray tandem mass spectrometer was operated in the multiple reaction monitoring mode. The precursor‐to‐product ion transitions m/z 317 → m/z 261 (febuxsotat) and m/z 324 → m/z (261 + 262) (d 7 ‐febuxostat, IS) were used for quantitation. The results were linear over the studied range (10.0–5000 ng/mL), and the total analysis time for each chromatograph was 3 min. The intra‐ and inter‐day precisions were less than 7.9 and 7.2%, respectively, and the accuracy was within ±4.2%. No evidence of analyte instability in human plasma was observed storage at −20°C for 31 days. This method was successfully applied in the determination of febuxostat concentrations in plasma samples from healthy Chinese volunteers. Copyright © 2012 John Wiley & Sons, Ltd.