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Related Concept Videos

High-Performance Liquid Chromatography: Elution Process01:05

High-Performance Liquid Chromatography: Elution Process

In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
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Related Experiment Video

Updated: Jun 30, 2026

Separation of Aldehydes and Reactive Ketones from Mixtures Using a Bisulfite Extraction Protocol
09:08

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Published on: April 2, 2018

Practical solvent system selection for counter-current separation of pharmaceutical compounds.

Stéphane Dubant1, Ben Mathews, Paul Higginson

  • 1Chemical R&D, Pfizer Global R&D, Sandwich, Kent CT13 9NJ, UK. sdubant@gmail.com

Journal of Chromatography. A
|September 20, 2008
PubMed
Summary

Counter-current chromatography (CCC) offers scalable purification for pharmaceuticals. A new method uses statistics and fast HPLC to quickly find optimal solvent systems, saving significant time in research and development.

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Area of Science:

  • Chemical Engineering
  • Analytical Chemistry
  • Pharmaceutical Sciences

Background:

  • Counter-current chromatography (CCC) is a liquid-liquid separation technique with high potential for large-scale purification.
  • Its application in pharmaceutical research and development (R&D) requires efficient methods for optimizing separation parameters.
  • Developing suitable solvent systems for CCC is crucial but often a time-consuming process.

Purpose of the Study:

  • To investigate the utility of CCC in a pharmaceutical R&D setting.
  • To present a novel strategy for rapidly predicting optimal CCC solvent systems.
  • To reduce the time and effort required for solvent system screening in CCC.

Main Methods:

  • A novel strategy combining statistical approaches with fast High-Performance Liquid Chromatography (HPLC).
  • Generation of a three-dimensional partition coefficient map to predict optimal solvent systems.
  • Screening process completed within half a day, involving 9 experiments per solvent mixture.

Main Results:

  • The developed method significantly accelerates the identification of optimal solvent systems for CCC.
  • A three-dimensional partition coefficient map was successfully generated.
  • Test separations confirmed the validity and effectiveness of the rapid screening method.

Conclusions:

  • The novel strategy enables rapid prediction of optimal solvent systems for CCC.
  • This approach enhances the efficiency of CCC implementation in pharmaceutical R&D.
  • The method streamlines the development process, making CCC more accessible for large-scale purification.