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- Title
Determination of eperisone in human plasma by liquid chromatography-ESI-tandem mass spectrometry.
- Authors
Jeoung, Min; Jeong, Eun; Kim, Nam; Kim, Chang-Soo; Chung, Youn-Bok; Lee, Yong-Moon; Ahn, Su-Youn; Cho, Hwang-Eui; Lee, Yong; Hong, Jin; Moon, Dong-Cheul
- Abstract
A sensitive and selective method for the determination of 4′-ethyl-3-methyl-3-piperidinopro-piophenone hydrochloride (eperisone hydrochloride) in human plasma was developed and validated. The procedure employed an internal standard and a solvent extraction step followed by chromatography on a Xterra C18 minibore column. Detection was by electrospray ionization tandem mass spectrometry with multiple reaction monitoring. The mass transitions of eperisone and tolperisone (IS) were m/z 260 → 98 and m/z 246 → 98, respectively. The method has a limit of detection of 0.1 pg/mL for eperisone based on the three times signal-to-noise value with a linear range from 0.01 to 10.0 ng/mL for the analyte. Extraction recovery was on average 98.6±7.2% (SD) for eperisone. The Intra- and inter-day assay accuracy ranged from 93 to 114% and precision (RSD) was better than 8.5%. The method was successfully employed to analyze plasma samples and evaluate pharmacokinetics of eperisone in healthy male volunteers.
- Publication
Archives of Pharmacal Research, 2007, Vol 30, Issue 9, p1174
- ISSN
0253-6269
- Publication type
Article
- DOI
10.1007/BF02980255