Determination of mephenoxalone in human plasma sample by high-performance liquid chromatography-fluorescence detection

Yow Shieng Uang, I. Kei Chen, Li Hsuan Wang, Kuang Yang Hsu

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A simple and sensitive high-performance liquid chromatographic method involving fluorescence detection was developed for the determination of mephenoxalone in human plasma. A Cosmosil 5C18-MS column (250 mm×4.6 mm I.D., 5 μm) was used as stationary phase and the mobile phase consisted of water-acetic acid-acetonitrile (200:1:300) at a flow-rate of 1.0 ml/min. The fluorescence absorbance was monitored at 280 nm for excitation wavelength and 310 nm for emission wavelength. Temperature control was kept at 40°C for the column. The limit of quantitation achieved was 10 ng/ml, and the standard curve was found to be linear in the concentration range of 10-10 000 ng/ml. Under these analytical conditions, a sufficient mephenoxalone plasma concentration profile could be obtained for pharmacokinetic study.

Original languageEnglish
Pages (from-to)91-97
Number of pages7
JournalJournal of Chromatography B: Biomedical Sciences and Applications
Issue number1
Publication statusPublished - Aug 5 2001



  • Mephenoxalone

ASJC Scopus subject areas

  • Chemistry(all)

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