Donnan Exclusion Chromatography: The Elution Behavior of Phosphorus Oxopolyanions of Large Size in DEC

摘要

The elution behavior of ions of large size in Donnan exclusion chromatography has been elucieated by an assorted ionic and steric exclusion. An effective model for the swollen ion-exchanger phase such as a crosslinked dextran cation-exchanger and a structural size parameter for various oxoanions of phosphorus have been proposed. These studies may help the prediction for elution positions of ions excluded from an ion-exchanger column.