Separation of baicalin from Scutellaria Baicalensis Georgi with polyamide |
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Authors: | CHI Ru-an ZHOU Fang HUANG Kun ZHANG Yue-fei |
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Affiliation: | [1]School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430073, China [2]Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430073, China |
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Abstract: | Separation of baicalin from Scutellaria Baicalensis Georgi with polyamide was studied. The adsorption isotherm, kinetic equation and desorption law were investigated by static and dynamic adsorption methods. The results show that the kinetic behavior is mainly controlled by the liquid film diffusion process and obeys the Boyd film diffusion equation. Equilibrium data for the adsorption of baicalin are correlated with Freundlich isotherm equation, i.e.q=3.8C2.057e, suggesting that the relative capacity of polyamide to baicalin is somewhat small. The desorption results indicate that the baicalin with mass fraction of 33.86% and the least impurities can be obtained by chromatography using 60% ethanol as the eluant at room temperature. |
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Keywords: | baiealin Scutellaria Baicalensis Georgi adsorption separation |
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