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Related Experiment Videos

Recent developments in electrolytic devices for ion chromatography.

Yan Liu1, Kannan Srinivasan, Chris Pohl

  • 1Dionex Corporation, 1228 Titan Way, Sunnyvale, CA 94086, USA.

Journal of Biochemical and Biophysical Methods
|September 4, 2004
PubMed
Summary

New electrolytic devices simplify ion chromatography by using deionized water as the mobile phase. These innovations enable high-purity eluents and efficient contaminant removal for accurate ion analysis.

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Area of Science:

  • Analytical Chemistry
  • Electrochemistry

Background:

  • Ion chromatography (IC) traditionally uses complex eluents.
  • Electrolytic devices offer a novel approach to eluent generation and purification.
  • Advances in ion-exchange media and electromigration are key.

Purpose of the Study:

  • To review the principles of new electrolytic devices for ion chromatography.
  • To discuss their application in determining anionic and cationic analytes.
  • To highlight the shift towards using deionized water as the mobile phase.

Main Methods:

  • On-line eluent generators for high-purity electrolytes.
  • Continuously regenerated trap columns for contaminant removal.
  • Continuously regenerated suppressors to reduce background conductance.

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Main Results:

  • Electrolytic devices enable ion chromatographic separations using only deionized water.
  • These methods significantly alter routine ion chromatographic operations.
  • Successful determination of both anionic and cationic analytes is demonstrated.

Conclusions:

  • Electrolytic devices represent a significant advancement in ion chromatography.
  • The use of deionized water as the mobile phase is now feasible.
  • These technologies enhance the efficiency and scope of ion analysis.