Microchimica Acta

, Volume 88, Issue 3–4, pp 147–158 | Cite as

Position control and extra-column effects of a microelectrode detector in open-tubular column liquid chromatography

  • Andreas Manz
  • Wilhelm Simon


A liquid chromatography system with a potentiometric microelectrode at the exit end of an open-tubular LC column of 3.5μm i. d. nearly shows the theoretically [2, 10] predicted performance of 980 000 theoretical plates for non-retained components at a retention time of a few minutes. Possibilities of controlling the position of the microelectrode tip are given. A distance of one column i. d. between detector and column leads to a loss in column performance of about 15%.

Key words

open tubular column liquid chromatography microsensor position control potentiometric detector 


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Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • Andreas Manz
    • 1
  • Wilhelm Simon
    • 1
  1. 1.Department of Organic ChemistrySwiss Federal Institute of Technology (ETH)ZurichSwitzerland

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