Abstract
A simple liquid chromatography-electrospray ionization-mass spectrometric (LC–ESI–MS-MS) method was developed for determination of pirfenidone in rat plasma. After addition of phenacetin as internal standard, protein precipitation with 10% perchloric acid was employed for the sample preparation. Chromatographic separation was achieved on a C18 column, with 40: 60 (v/v) acetonitrile-0.1% formic acid as mobile phase. The assay is linear over the range 2–2,000 ng mL−1, with a lower limit of quantitation of 2 ng mL−1. The developed method was successfully applied to pharmacokinetic studies of pirfenidone in rats following single oral administration dose of 15 mg kg−1.
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Tong, S., Wang, X., Jiang, H. et al. Determination of Pirfenidone in Rat Plasma by LC–MS-MS and Its Application to a Pharmacokinetic Study. Chroma 71, 709–713 (2010). https://doi.org/10.1365/s10337-010-1538-5
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DOI: https://doi.org/10.1365/s10337-010-1538-5