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Trace Analysis of Racemic Isomers of Flurbiprofen in Human Urine using Column Switching-HPLC  

Choi, Hyun-Cheol (Drug Evaluation in Korea Food & Drug Administration)
Kang, Sin-Jung (Drug Evaluation in Korea Food & Drug Administration)
Youn, Mi-Ok (Drug Evaluation in Korea Food & Drug Administration)
Lee, Su-Jung (Drug Evaluation in Korea Food & Drug Administration)
Kim, Ho-Jung (Drug Evaluation in Korea Food & Drug Administration)
Park, Chang-Hun (Drug Evaluation in Korea Food & Drug Administration)
Cha, Ki-Won (Department of chemistry, Inha university)
Publication Information
Analytical Science and Technology / v.15, no.6, 2002 , pp. 529-533 More about this Journal
Abstract
The separation and determination method of racemic isomers of flurbiprofen in urine samples have been investigated using column switching- HPLC, which include the sample treatment and concentration column. The optical rotation of two isomers separated were measured to identify d-form and l-form. The calibration curves are liear in the ranges of $0.11-5.4{\mu}g/mL$ for both d-form and l-form. The detection limits were $0.031{\mu}g/mL$ for l-isomes and $0.027{\mu}g/mL$ for d-isomer. The coefficients of variation of intra-day and inter-day precision of this method were about 1.8%. The present method was apllied to determine the concentration of racemic isomers in urine sample from human eating the drug.
Keywords
Column - Switching HPLC; Racemic compound; Flurbiprofen; Specific rotation;
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