Separation of Inorganic Anions and Cations on Titania by Use of Acetic Acid-Sodium Acetate and Bicine (cas 150-25-4)-Sodium Hydroxide Buffers

Add time:09/29/2019    Source:infona.pl

The ion-exchange retention behavior of titania synthesized in our laboratory was investigated by ion chromatography of inorganic anions and cations. Dilute acetic acid-sodium acetate and bicine-sodium hydroxide buffers were used as mobile phases with no use of suppressor. We observed that the titania, although poor at separating monovalent anions except nitrite ion in this experiment, was both an anion and a cation exchanger, and selectively retained fluoride and carbonate ions. We concluded that because of its specific retention properties there were possibilities of using this amphoteric exchanger for simultaneous analysis of anions and cations, and of using it as a selective packing material for ion chromatography.

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