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anion exchanger

Pronunciation: an′ī-on eks-chānj′ĕr

Definition: An insoluble solid, usually a polystyrene or a polysaccharide, with cation groups (—NR3+ or —NR2H+), which can attract and hold anions that pass by in a moving solution in exchange for anions previously held.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.