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Of the three columns pictured, only the column on the right is actually manufactured as a chromatography column. Note the stopcock at the bottom of the column. This is to control the flow of solvent through the column, important for gravity column chromatography applications.
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orgchem.colorado.edu/hndbksupport/colchrom/colchromproc...
orgchem.colorado.edu/hndbksupport/colchrom/colchromproc.html
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Column chromatography is frequently used by organic chemists to purify liquids (and solids.) An impure sample is loaded onto a column of adsorbant, such as silica gel or alumina. An organic solvent or a mixture of solvents (the eluent) flows down through the column.
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www.wfu.edu/academics/chemistry/courses/CC/index.htm
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Column chromatography - Wikipedia, the free encyclopedia
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Column chromatography in chemistry is a method used to purify individual chemical compounds from mixtures of compounds. It is often used for preparative applications on scales from micrograms up to k...
en.wikipedia.org/wiki/Column_chromatography
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Column chromatography is one of the most useful methods for the separation and purification of both solids and liquids when carrying out small-scale experiments. Column chromatography is another solid-liquid technique in which the two phases are a solid (stationary phase) and a liquid (moving phase).
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www.wellesley.edu/Chemistry/chem211lab/Orgo_Lab_Manual/...
www.wellesley.edu/Chemistry/chem211lab/Orgo_Lab_Manual/Appendix/Techniques/ColumnChrom/column_chrom.html
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A simple description of how column chromatography works. ... This page shows how the same principles used in thin layer chromatography can be applied on a larger scale to separate mixtures in column chromatography. Column chromatography is often used to purify compounds made in the lab.
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www.chemguide.co.uk/analysis/chromatography/column.html
www.chemguide.co.uk/analysis/chromatography/column.html
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Chromatography - Wikipedia, the free encyclopedia
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Chromatography (from Greek χρώμα: chroma , color and γραφειν: graphein to write) is the collective term for a set of laboratory techniques for the separation of mixtures. It involves passing a mi...
en.wikipedia.org/wiki/Chromatography
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Column chromatography involves the separation of compounds by the same mechanism as other chromatographic techniques, i.e. differences in partitioning between mobile and stationary phases. (See "Chromatography" in Pavia).
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www.uwlax.edu/faculty/koster/acetylferrocene.htm
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glass chromatography column with a porous membrane at the bottom and a stop cock at the outlet ... Using a swan-neck lamp a bright beam of light is directed at the leaf extract and at the samples eluted from chromatography column. Leaf extract and the samples containing chlorophyll or pheophytin produce a reddish glow.
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www.uni-regensburg.de/Fakultaeten/nat_Fak_IV/Organische...
www.uni-regensburg.de/Fakultaeten/nat_Fak_IV/Organische_Chemie/Didaktik/Keusch/D-CC-e.htm
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