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.