Chromatographia

, Volume 42, Issue 3–4, pp 171–176 | Cite as

Instrumental developments in capillary electrochromatography

  • H. Rebscher
  • U. Pyell
Originals

Summary

An instrumental device for capillary electrochromatography (CEC) is described that permits conditioning of packed columns at pressures up to 100 bar, in or on-column fluorescence detection and electrokinetic sample injection. Capillaries with varying inner diameters (75, 100, 150 μm) packed with octadecyl silica gel (3 μm) are compared for efficiency and detection sensitivity. The influence of counter pressure on electroosmotic velocity and plate number is discussed.

Key Words

Liquid chromatography Electrochromatography Slurry packed capillaries Polycyclic aromatic hydrocarbons 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1996

Authors and Affiliations

  • H. Rebscher
    • 1
  • U. Pyell
    • 1
  1. 1.Fachbereich Chemie der Philipps-Universität MarburgMarburgGermany

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