▎ 摘　　要

NOVELTY - A graphene polymer composite chromatographic packing is prepared by using polystyrene-divinylbenzene and graphene oxide as matrix material or polyethyl ethylvinylbenzene-divinylbenzene and graphene oxide as matrix material, in situ reducing or stepwise reducing graphene oxide using hydrazine hydrate, forming a layer of wrinkled graphene shell layer. USE - Method for preparing graphene polymer composite chromatographic packing (claimed) used for inhibiting conductive ion chromatography. ADVANTAGE - The method has very wide range of acid alkali and compatible organic solvent, accords to the different reaction characteristics of surface composite graphene, and synchronously prepares negative and positive ion exchanging chromatogram packing material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for chemical modification method of graphene polymer composite chromatographic packing comprising ultrasonically dispersing graphene polymer composite chromatographic packing into solvent, adding organic primary amine and epoxy crosslinking agent, heating and reacting, forming tertiary amine polymer layer surface of chromatogram packing, washing using purified water, adding epoxy crosslinking agent, heating and reacting, quaternizing tertiary amine polymer, introducing additional epoxy, adding organic amine, heating, and introducing layer of amino to obtain graphene polymer composite chromatographic packing with graphene polymer composite chromatographic packing.