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《Journal of Fuzhou University(Natural Science Edition)》 2007-04
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Study on adsorption equilibrium for the binary mixtures of L-tyrosine and L-phenylalanine on 732 cation-exchange resin

LIU Jing-xia,WANG Zhong-lai(College of Biological Science and Technology,Fuzhou University,Fuzhou,Fujian 350002,China)  
The adsorption equilibrium of L-tyrosine,L-phenylalanine,and their binary amino acid mixtures on 732 cation-exchange resin in a constant-temperature bath was investigated.The adsorption equilibrium for every single component agreed well with both the Freundlich isotherm and the Langmuir isotherm.The empirical extension of the Freundlich model was more suitable to represent the adsorption equilibrium for the above binary amino acid mixtures than that of the ideal adsorbtion solution model and the Langmuir competitive adsorption model.In the binary amino acid mixtures,L-phenylalanine dominated the competitive binding.These isotherms could be used as the reference for the modeling and simulation of dynamic processes of competitive adsorption.
【CateGory Index】: O647.31
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