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Supercritical fluid chromatography.

D R Gere

    Science (New York, N.Y.)
    |October 21, 1983
    PubMed
    Summary

    Supercritical fluid chromatography (SFC) offers a powerful method for separating complex mixtures. Advances in hardware make SFC increasingly accessible for analyzing challenging compounds like resin acids and bacterial ubiquinones.

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    Area of Science:

    • Analytical Chemistry
    • Chromatographic Techniques

    Background:

    • Supercritical fluid chromatography (SFC) was proposed over 20 years ago.
    • Commercial hardware advancements have increased the usability of SFC.
    • Current SFC often uses supercritical carbon dioxide with packed liquid chromatography columns.

    Purpose of the Study:

    • To highlight the expanding applications of supercritical fluid chromatography.
    • To discuss the potential of using alternative supercritical fluids or modifiers.
    • To demonstrate SFC's capability in separating difficult mixtures.

    Main Methods:

    • Utilizing supercritical carbon dioxide as the mobile phase.
    • Employing packed liquid chromatography columns as the stationary phase.
    • Exploring the use of other supercritical fluids and modifiers.

    Main Results:

    • Supercritical carbon dioxide offers advantages like near-ambient critical temperature and minimal spectrometric interference.
    • SFC can successfully separate mixtures challenging for other chromatographic methods.
    • Specific examples include separating resin acids (C20H30O2) and ubiquinones from Legionella pneumophila.

    Conclusions:

    • SFC is a versatile technique with growing practical applications.
    • Modifications to the mobile phase can further broaden SFC's utility.
    • SFC is effective for analyzing complex natural product mixtures.

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