ANION-EXCHANGE SORBENT FOR IONOCHROMATOGRAPHIC DETECTION OF ORGANIC AND INORGANIC ANIONS AND METHOD OF PRODUCTION THEREOF Russian patent published in 2016 - IPC B01J20/22 B01J20/26 B01J20/281 

FIELD: chemistry.

SUBSTANCE: general formula of the claimed sorbent corresponds to formula (1). A matrix is selected from the group: divinylbenzene-based polymer, acting as a cross-linking agent for the said polymer, polymethacrylate, silicon dioxide, titanium dioxide, zircon dioxide or aluminium oxide. The sorbent contains a water-soluble polymer, remote from the matrix surface by means of a spacer, which contains quaternary ammonium functional groups 1 , where R=(CH₂)n, n=2-8, - quaternary nitrogen atom. To the matrix chemically grafted is the spacer, based on a compound from a class of diglycidile ethers, with the further realisation of modification by a water-soluble polymer, which contains in the chain primary, secondary or tertiary amino-groups until quaternary ammonium-groups, chemically grafted to an oxirane ring of diglycidile ethers, are obtained.

EFFECT: sorbent possesses high stability, selectivity and efficiency.

15 cl, 1 dwg, 1 tbl, 13 ex