SELECTIVE SEPARATION NITROSO-CONTAINING COMPOUNDS Russian patent published in 2017 - IPC B01D15/26 A24B15/24 B01J20/26 B01J20/28 

FIELD: chemistry.

SUBSTANCE: balls consist of non-acidic absorbent resin monomer and a crosslinking agent containing polar functional groups, one of which is hydrophilic, and the second - hydrophobic. The beads prepared by suspension polymerization of the monomer and crosslinking agent in an aqueous medium in the presence of a steric stabiliser and a blowing agent, and isolation of the polymerized material from the reaction mixture. The beads can be prepared by suspension polymerization in the presence of nitrosamine structural analogue specific for tobacco subjected to obtain molecular imprinting polymer associated with nitrosamine structural analogue and removing said structural analogue of the balls. The beads can be used, for example, for isolation and analysis of biological fluids nitrosamines and processing and manufacture of tobacco products and tobacco materials.

EFFECT: providing a polymer in bead form suitable for more efficient removal of one or more nitroso-containing compounds of material containing nitroso-containing compounds compared with the polymer being in the form of shredded particles.

55 cl, 18 dwg, 13 tbl, 16 ex