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USP L74 A strong anion-exchange resin consisting of a highly cross-linked core of 7-µm macroporous particles having a 100 Angstroms average pore size and consisting of ethylvinylbenzene crosslinked with 55% divinylbenzene and an anion-exchange layer grafted to the surface, which is functionalized with alkyl quartenary ammonium ions.

Dionex IonPac AS14A