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    Wikipedia
    https://en.wikipedia.org › wiki › Gas_chromatography

    Gas chromatography - Wikipedia

    • Gas chromatography (GC) is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. Typical uses of GC include testing the purity of a particular substance, or separating the different components of a mixture. In preparative chromatography, GC can be used to prep… 展开

    Operating principle

    A gas chromatograph is made of a narrow tube, known as the column, through which the vaporized sample passes, carried along by a continuous flow of inert or nonreactive gas. Components of the sample pass through the colu… 展开

    History

    Chromatography dates to 1903 in the work of the Russian scientist, Mikhail Semenovich Tswett, who separated plant pigments via liquid column chromatography.
    The invention of … 展开

    Physical components

    The autosampler provides the means to introduce a sample automatically into the inlets. Manual insertion of the sample is possible but is no longer common. Automatic insertion provides better reproducibility an… 展开

    Can gas chromatography analyze liquid samples?
    Indeed, most GC methods target liquid samples and there are even applications for solids. The fundamental requirement for samples to be analyzed by gas chromatography is the compounds of interest in the sample must volatilize without thermally decomposing.
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