Adsorption of Tyrosine on Active Carbon/Water Interface

Abstract

Abstract: The adsorption of tyrosine from aqueous solution on the active carbon at varying pHvalues has been studied.The results indicate that: (1) the adsorption found to be pHdependent,within pH2-4 it increases with pH, within pH6-12 it decreases with pH, at pH4.2-6.1 the adsorption reaches its maximum; (2) the tyrosine is adsorbed mainly in the form of zwitterion; (3) a certain amount of ions of tyrosine is also adsorbed with van der Waals interaction.These probably suggest that the solubility of tyrosine at IEPhas minimum,and the ions and undissociated groups of tyrosine can be adsorbed on the surface of active carbon through van der Waals interaction.

Key words: Tyrosine, Adsorption on solid/liquid interface, Active carbon

CLC Number:

O647

TrendMD:

ZHAO Zhen-Guo, JIN Ming-Zhong, LIU Ying-Qing . Adsorption of Tyrosine on Active Carbon/Water Interface[J]. Chem. J. Chinese Universities, 2000, 21(12): 1904.

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Adsorption of Tyrosine on Active Carbon/Water Interface

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