Sorption of transition metals on monolith CIM discs modified with oligoethyleneamines

The immobilization of oligoethyleneamines on the surface of commonly used sorbents imparts complexing properties to them. The simultaneous preconcentration and separation of transition metals in a chromatofocusing mode can be performed on these sorbents. A considerable disadvantage of this method is the duration of separation, which requires 2 to 3 h. A decrease in the analysis time requires the use of fundamentally new sorption materials and chromatographic columns based on them.