The invention concerns alkali-stable hydrophilic sorbents for ion-exchange chromatography.
The invention is characterized in that it consists in using as base material a
crosslinked vinyl polymerconsisting of vinyl monomers containing diol groups and
crosslinking monomers whereof the polymerizable groups are bound by carbonamide-containing
chains. Monomers containing ionic groups are grafted on said base material using
cerium (IV) salts.