The adsorption of amino acids on the surface of highly dispersed silica

被引:62
作者
Vlasova, NN [1 ]
Golovkova, LP [1 ]
机构
[1] Natl Acad Sci Ukraine, Inst Surface Chem, UA-03164 Kiev 164, Ukraine
关键词
D O I
10.1007/s10595-005-0042-3
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 arginine, histidine, lysine, and ornithine on the surface of highly dispersed silica from aqueous solutions was studied as a function of pH. The equilibrium constants of the formation of surface complexes were calculated using the Stern model for the electrical double layer. It was shown that the possibility of adsorption of amino acids on the silica surface is determined by the presence of additional basic groups in their molecules.
引用
收藏
页码:657 / 662
页数:6
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