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Automated Hydrophobic Interaction Chromatography Column Selection for Use in Protein Purification
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Published on: September 21, 2011

Chromatography on water-ice.

P K Dasgupta1, Y Mo

  • 1Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 70409-1061.

Analytical Chemistry
|June 7, 2011
PubMed
Summary
This summary is machine-generated.

This study shows that ice surfaces can act as a chromatographic column for separating dyes. Microparticulate ice columns effectively performed normal phase separation at -18 °C.

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Area of Science:

  • Physical Chemistry
  • Materials Science
  • Separation Science

Background:

  • Ice surfaces possess a thin water film, varying in thickness with temperature and composition.
  • This surface water film suggests ice particles could function similarly to pellicular packing in chromatographic columns.

Purpose of the Study:

  • To investigate the potential of ice as a stationary phase in chromatography.
  • To demonstrate normal phase separation using a column packed with ice particles.

Main Methods:

  • A column was packed with millimeter-size ice particles.
  • The ice column was maintained at a temperature of -18 °C.
  • Two dyes were introduced to the column to assess separation capabilities.

Main Results:

  • Normal phase separation of two dyes was successfully achieved on the ice column.
  • The ice column demonstrated chromatographic separation properties.

Conclusions:

  • Ice surfaces, due to their inherent water film, can function as effective chromatographic stationary phases.
  • This finding opens possibilities for low-temperature chromatographic separations using ice.