Equilibrium studies of adsorption of amino acids on NaZSM-5 zeolite

被引：47

作者：

Titus, E

Kalkar, AK ^{[1
]}

Gaikar, VG

机构：

[1] Univ Mumbai, Dept Chem Technol, Div Appl Phys, Bombay 400019, Maharashtra, India

[2] Univ Mumbai, Dept Chem Technol, Div Chem Engn, Bombay 400019, Maharashtra, India

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2003年 / 223卷 / 1-3期

关键词：

aminoacids; separation; adsorption;

D O I：

10.1016/S0927-7757(03)00131-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption of amino acids such as phenylalanine, alanine, tyrosine and tryptophan on highly hydrophobic NaZSM-5 zeolite were studied. Selective adsorption of phenylalanine and tyrosine were observed. The single component adsorption isotherms were fitted in Langmuir model. For the amino acids considered in this work, the isotherms are essentially independent of pH, but they vary significantly with the temperature. Heats of adsorption were obtained from van't Hoff plots of the Henry's law constant limit of the Langmuir isotherm and found to be higher for more hydrophobic solute. (C) 2003 Published by Elsevier B.V.

引用

页码：55 / 61

页数：7

共 20 条

[1] Separation of chiral sulfoxides by liquid chromatography using macrocyclic glycopeptide chiral stationary phases [J].