Competition between ions in size exclusion chromatography of electrolytes on neutral microporous materials

Competition between hydrated ions for accessible porous space within particles of non-functionalised microporous sorbents (hypercrosslinked polystyrene or microporous carbonaceous materials) in the size exclusion chromatography of concentrated solutions of mineral electrolytes results in the enhancing of both the selectivity of separation and the self-concentrating effect of resolved components.