Dimethylethyl-s-triazinylammonium Chloride as an Anion Exchanger for Single Column Ion Chromatography

Author: Yong-Hwa Yang, Fun-Zu Lin(Department of Chemistry, National Taiwan Normal University)

Abstract：

Several silica-based anion exchangers for single-column ion chromatography (SCIC) were prepared by immobilizing quaternary am-monium salts of cyanuric chloride onto the surface of silane-modified silica-gel. Some stationary phases of low capacities (0.06-0.16 mequiv./g ) were obtained and effective separation of monovalent anions was achived with a series of homologous dicarboxylic acids as eluents on short columns using a conductometric detector.
Factors that can affect the retention behavior, such as eluent species, eluent concentration and eluent pH, capacity of anion exchanger were examined. The results demonstrate that the retention of anions is governed by ion-exchange, adsorption and hydrophobic interactions.

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