Determination of norfloxacin in rat liver perfusate using capillary electrophoresis with laser-induced fluorescence detection

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题名:	Determination of norfloxacin in rat liver perfusate using capillary electrophoresis with laser-induced fluorescence detection
作者:	Ching-Ling Cheng Chia-Hung Fu Chen-Hsi Chou
贡献者:	藥學系
关键词:	Capillary electrophoresis Hepatic disposition Norfloxacin Perfused rat liver Laser-induced fluorescence
日期:	2007-09
上传时间:	2010-01-15 14:39:59 (UTC+8)
出版者:	Elsevier Science Bv
摘要:	A capillary zone electrophoresis method has been developed for the direct determination of norfloxacin in the physiological perfusate of isolated rat liver. Norfloxacin and the internal standard triamterene were detected using laser-induced fluorescence (LIF) detection with the excitation and emission wavelength of 325 and 435 nm, respectively. The background electrolyte (BGE) was 50 mM phosphate buffer (pH 4.6). The effect of pH and concentration of BGE on the electrophoretic migration and fluorescence response of analytes were examined. Calibration curves were linear over a wide range of 0.01–100 μg/mL. The limit of quantitation was 0.01 μg/mL. The intra- and inter-day relative standard deviation was 3.7%, or less, and the accuracy was 93.2% of the nominal concentration. No endogenous substances were found to interfere. The method was used to characterize the steady-state and transient pharmacokinetics of norfloxacin in the rat liver.
關聯:	Journal of Chromatography B 856(1-2)： p.381-385
显示于类别:	[Dept. of Pharmacy] Periodical Articles

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