Sorption of Mo(Ⅵ), W(Ⅵ), Cr(Ⅵ), and V(Ⅴ) Anions on a Silica Gel Modified with Immobilized Polyionene

摘要

The sorption of polyionene 1,4-MePh on the silica gel surface was studied. The silica gel modified with polyionene sorbed was used for sorption preconcentration of MoO_4~(2-), WO_4~(2-), Cr_2O_7~(2-), and VO_3~- anions from aqueous solutions. The sorption isotherms of these anions on the initial and modified silica gels were obtained and analyzed.