Adsorption Equilibrium of Caffeine and Theophylline on C18 Column Using Ionic Liquids as Additives

W. Bi; D.K. Choi; K.H. Row

Issue

Vol. 22 No. 5 (2010): Vol 22 Issue 5

Issue Published : February 4, 2010

Adsorption Equilibrium of Caffeine and Theophylline on C18 Column Using Ionic Liquids as Additives

W. Bi

Department of Chemical Engineering, Inha University, 253, Yonghyun-Dong, Nam-Gu, Incheon, South Korea

D.K. Choi

Center for Fuel Cell Research, Korea Institute of Science and Technology, Seoul 136-791, South Korea.

K.H. Row

Department of Chemical Engineering, Inha University, 253, Yonghyun-Dong, Nam-Gu, Incheon, South Korea

Corresponding Author(s) : K.H. Row

rowkho@inha.ac.kr

Asian Journal of Chemistry, Vol. 22 No. 5 (2010): Vol 22 Issue 5
Article Published : March 30, 2010

Abstract

Comparison of caffeine and theophylline adsorption isotherm on C₁₈ column using ionic liquids as mobile phase additives and the competitive adsorption of the two compounds were investigated. The experimental parameters of the equilibrium isotherms were determined via Langmuir isotherm model. The effects of the concentrations and the alkyl chain length of imidazolium ionic liquids on C₁₈ particles were investigated.

Keywords

Adsorption isotherm Ionic liquids Caffeine Theophylline

Bi, W., Choi, D., & Row, K. (2010). Adsorption Equilibrium of Caffeine and Theophylline on C18 Column Using Ionic Liquids as Additives. Asian Journal of Chemistry, 22(5), 4003–4009. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/11640

Issue

Vol. 22 No. 5 (2010): Vol 22 Issue 5

Adsorption Equilibrium of Caffeine and Theophylline on C18 Column Using Ionic Liquids as Additives

Corresponding Author(s) : K.H. Row

Abstract

Keywords

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