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Recent developments in capillary electrokinetic chromatography with replaceable charged pseudostationary phases or

Iván Peric1, Ernst Kenndler

  • 1Faculty of Chemical Sciences, University of Concepción, Chile. iperic@udec.cl

Electrophoresis
|September 16, 2003
PubMed
Summary
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This review explores electrokinetic chromatography using non-micellar charged additives like polymers and small molecules. These alternatives offer advantages over traditional micellar electrokinetic chromatography, enabling wider solvent compatibility.

Area of Science:

  • Analytical Chemistry
  • Separation Science

Background:

  • Electrically driven separation science relies on charged pseudostationary phases, such as micelles.
  • Non-micellar alternatives offer advantages, including higher organic solvent tolerance and independence from critical micellar concentration.

Purpose of the Study:

  • To review recent advancements in electrokinetic chromatography utilizing non-micellar charged additives.
  • To cover developments in ionic polymeric phases, dendrimers, micelle polymers, and small molecule additives.

Main Methods:

  • Literature review of electrokinetic chromatography techniques.
  • Focus on charged soluble polymers and small molecule additives as pseudostationary phases.

Main Results:

  • Recent developments include ionic polymeric pseudostationary phases, dendrimers, and micelle polymers.

Related Experiment Videos

  • Small molecules are also employed for separation selectivity via specific analyte interactions.

    • Conclusions:

    • Non-micellar additives provide versatile and effective alternatives in electrokinetic chromatography.
    • These methods expand the applicability of electrokinetic separations, particularly in complex solvent systems.