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The adsorption of biogenic amines on the surface of highly dispersed silica from aqueous solutions
Authors:N. N. Vlasova  O. V. Markitan  N. G. Stukalina
Affiliation:(1) Institute of Surface Chemistry, National Academy of Sciences of Ukraine, ul. Generala Naumova 17, Kiev, 164, 03164, Ukraine
Abstract:The adsorption of some biogenic amines (histamine, tryptamine, and tyramine) on the surface of highly dispersed silica from aqueous solutions is studied as a function of pH and ionic strength. It is established that biogenic amines in a protonated form interact with dissociated silanol groups of SiO2 surface forming outer-sphere complexes. The constants of the formation of surface complexes are calculated.
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