... Nesterenko P. N., Nesterenko E. P., Ivanov A. V. Modification of Silica Surface with Alumina . Abstract The technique of silica surface modification with alumina using aluminum triethoxide was worked out for the first time. ... Silica modified with alumina retains aromatic carbohydrates weaker then silica, what is connected with the change of chemical properties of sorbent and its surface area. Moscow University Chemistry Bulletin . 2001, Vol. ... 2, P. 106 . ...