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http://dx.doi.org/10.5012/jkcs.2010.54.01.038

Analysis of Matrine Alkaloids in Human Urine by Hollow Fiber Liquid-phase Microextraction with High-performance Liquid Chromatography  

Han, Dan-Dan (Department of Chemical Engineering, Inha University)
Row, Kyung-Ho (Department of Chemical Engineering, Inha University)
Publication Information
Journal of the Korean Chemical Society / v.54, no.1, 2010 , pp. 38-42 More about this Journal
Abstract
A sensitive quantitative method for the determination of matrine alkaloids in human urine was developed based on hollow fiber liquid-phase microextraction (HF-LPME) combined with HPLC. The influence of the different factors on the HF-LPME efficiency including the pH and ion strength of the donar solution, the pH of the acceptor solution, stirring rate and extraction time were examined. The best HF-LPME conditions were as follows: 1-octanol impregnated in the pores of the hollow fiber, 100 mmol/L of $H_3PO_4$ at pH 1.50 as the acceptor solution injected into the lumen of the hollow fiber, 1 mol/L NaOH used to adjust the pH of the donor solution, stirring rate of 600 rpm and extraction time of 60 min. The LPME method was applied successfully to the analysis of matrine and sophocarpine in real urine samples.
Keywords
Hollow fiber liquid phase microextraction; Human urine; Matrine alkaloids;
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