Title of article :
Comparison of adsorption equilibrium of glycyrrhizic acid and liquiritin on C18 column
Author/Authors :
Zhu، نويسنده , , Tao and Tian، نويسنده , , Minglei and Row، نويسنده , , Kyung Ho، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
6
From page :
929
To page :
934
Abstract :
The adsorption isotherms of glycyrrhizic acid (GA) and liquiritin (LQ) on a C18 column were compared and the competitive adsorption of the two compounds was investigated. The experimental parameters in the equilibrium isotherms were estimated by linear and nonlinear regression analyses. The adsorption equilibrium data were correlated into the linear, Langmuir, competitive Langmuir, Freundlich, and Langmuir–Freundlich isotherm models. Over a moderate concentration range, the competitive Langmuir isotherm provided the best fit to the experimental data. The regression coefficients of the competitive Langmuir adsorption isotherms were 0.9754 and 0.9855 for the mixtures of GA and LQ, respectively. The coefficients obtained for the five isotherm models confirmed the superiority of the competitive Langmuir isotherm for analyzing the adsorption data of solutes.
Keywords :
Competitive adsorption , Adsorption isotherm , Liquiritin , Glycyrrhizic acid
Journal title :
Journal of Industrial and Engineering Chemistry
Serial Year :
2010
Journal title :
Journal of Industrial and Engineering Chemistry
Record number :
1709150
Link To Document :
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