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Updated: Apr 21, 2026

Synthesis and Purification of Iodoaziridines Involving Quantitative Selection of the Optimal Stationary Phase for Chromatography
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Implementing stationary-phase optimized selectivity in supercritical fluid chromatography.

Sander Delahaye1, Frédéric Lynen

  • 1Separation Science Group, Department of Organic and Macromolecular Chemistry, Universiteit Gent , Krijgslaan 281 S4-bis, B-9000 Gent, Belgium.

Analytical Chemistry
|November 14, 2014
PubMed
Summary
This summary is machine-generated.

Stationary-phase optimized selectivity supercritical fluid chromatography (SOS-SFC) is now possible. This method improves complex mixture separations without density correction, enhancing efficiency in preparative SFC.

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Area of Science:

  • Analytical Chemistry
  • Chromatography

Background:

  • Stationary-phase optimized selectivity liquid chromatography (SOS-LC) effectively separates complex mixtures using algorithms and specialized column kits.
  • Implementing SOS in supercritical fluid chromatography (SFC) was previously unattempted due to mobile phase density variations affecting solute retention.

Purpose of the Study:

  • To demonstrate the feasibility of stationary-phase optimized selectivity supercritical fluid chromatography (SOS-SFC).
  • To adapt existing SOS-LC algorithms for SFC applications and assess their predictive capabilities.

Main Methods:

  • Utilized a commercially available column kit with diverse stationary phases and lengths.
  • Applied classical isocratic SOS-LC algorithms to SFC separations with low-density mobile phases (94% CO2).
  • Evaluated the impact of mobile phase density and segment order on separation predictions and experimental outcomes.

Main Results:

  • SOS-SFC was successfully implemented, showing feasibility without explicit density correction.
  • Optimal prediction accuracy was achieved under isopycnic conditions (constant density).
  • The influence of segment order was less critical than anticipated, simplifying method development.

Conclusions:

  • SOS-SFC is a promising technique comparable to SOS-LC in High-Performance Liquid Chromatography (HPLC).
  • The approach enhances baseline separation of complex mixtures and optimizes separation windows for preparative SFC.
  • Significant improvements in production rates for (semi)preparative SFC are achievable using SOS-SFC.