Journal
JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS
Volume 60, Issue 3, Pages 205-232Publisher
ELSEVIER
DOI: 10.1016/j.jbbm.2004.01.004
Keywords
ion chromatography; on-line electrolytic eluent generation; electrolytic suppressors; continuously regenerated trap column; electrolysis of water; electrically polarized ion-exchange media
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Recent developments in new electrolytic devices that utilize the electrolysis of water and charge-selective electromigration of ions through ion-exchange media have significantly changed the routine operation of ion chromatographic methods. Examples of these new electrolytic devices include online eluent generators that produce high-purity electrolyte eluents using deionized water as the carrier stream, continuously regenerated trap columns that remove ionic contaminants in the eluents, and continuously regenerated suppressors that reduce eluent background conductance prior to conductivity detection. The combined use of these electrolytic devices has made it possible to per-form various ion chromatographic separations using only deionized water as the mobile phase. This paper reviews the operation principles of these electrolytic devices and their applications in the ion chromatographic determination of anionic and cationic analytes. (C) 2004 Elsevier B.V. All rights reserved.
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