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Separation and Determination of Active Components in Evodiae fructus and its Pharmaceutical Preparations by Non-Aqueous Micellar Electrokinetic Chromatography

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Abstract:

In this paper, an easy, economical and effective nonaqueous micellar electrokinetic capillary chromatography (NAMECC) method for the simultaneous determination of two bioactive components (evodiamine and rutaecarpine) in Evodiae Fructus and its pharmaceutical preparations was developed for the first time. After optimization of the separation conditions and concentration conditions, the two alkaloids can be separated by using a fused-silica capillary column (57 × 75 μm I.D.) with a running buffer of 140 mM sodium cholate (SC) in methanol and detected with a diode-array detector (228nm). The second-order derivative electropherograms were applied for resolving overlapping peaks in complicated preparations. Regression equations revealed good linear relationships (correlation coefficients 0.9969-0.9999) between peak heights in second-order derivative electropherograms and concentrations of the two analytes. The relative standard deviations (RSD) of the migration times and the peak height of the two constituents were less than 0.49% and 1.6%. The recoveries of two constituents ranged from 93.5 to 105.6%. The results indicated that baseline separation of the analytes was hard to be achieved in real samples sometimes and second-order derivative electropherograms was applicable for the resolving and analysis of overlapping peaks.

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Periodical:

Advanced Materials Research (Volumes 781-784)

Pages:

104-110

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.781-784.104

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Online since:

September 2013

Authors:

Wen Yan Zhao, Yu Jiao Wu, Guo Yan Wang, An Jia Chen

Keywords:

Evodiamine, Nonaqueous Micellar Electrokinetic Capillary Chromatography, Rutaecarpine, Second-Order Derivative Electropherograms

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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