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Related Experiment Videos

Capillary columns in liquid chromatography: between conventional columns and microchips.

Yoshihiro Saito1, Kiyokatsu Jinno, Tyge Greibrokk

  • 1School of Materials Science, Toyohashi University of Technology, Toyohashi 441-8580, Japan.

Journal of Separation Science
|January 11, 2005
PubMed
Summary

Small-bore liquid chromatography bridges conventional and microchip techniques, offering advantages for limited sample analysis with sensitive detectors. Recent innovations include monolithic and nano columns, enhancing separation capabilities.

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Area of Science:

  • Analytical Chemistry
  • Separation Science
  • Chromatography

Background:

  • Liquid chromatography (LC) on small internal diameter columns is an intermediate technique between conventional LC and microchip separations.
  • Historical development traces back to early micro column separations and recent innovations in small-bore columns.
  • Classification of analytical High-Performance Liquid Chromatography (HPLC) columns based on internal diameters is proposed.

Purpose of the Study:

  • To review the development and current status of micro column liquid chromatography.
  • To discuss the advantages of small-bore columns, particularly for coupling with concentration-sensitive detectors.
  • To explore recent advancements and future applications in micro separation technologies.

Main Methods:

Related Experiment Videos

  • Review of historical and recent literature on small internal diameter liquid chromatography.
  • Classification of analytical HPLC columns by internal diameter.
  • Discussion of coupling techniques, including electrospray mass spectrometry and two-dimensional chromatography.

    • Main Results:

    • Small-bore columns offer significant advantages, especially when dealing with limited sample amounts and concentration-sensitive detectors.
    • Recent developments include monolithic columns, packed nano/micro columns, and two-dimensional comprehensive LC.
    • Integration of sample preparation with analytical columns and potential applications in microchip separations are highlighted.

    Conclusions:

    • Small-bore liquid chromatography represents a significant advancement in separation science.
    • Ongoing innovations are expanding the capabilities and applications of micro-scale chromatographic techniques.
    • Future directions point towards enhanced microchip separation methods driven by technological improvements.