Chromatographic column

Gas phase chrormatography
Liquid phase chromatography

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Gas phase chromatography

A length of tube filled with a stationary phase and used for chromatographic separations.

There are two types of columns : the capillary tubes for gas chromatography and wider diameter tubes used for liquid chromatography.

Capillary tube

Very low diameter tubing, e.g. used in gas chromatography.

Liquid phase chromatography

A chromatographic method in which the solid stationary phase is maintained in a tube held vertically.

The mobile phase progresses by gravity or under pressure.

Microscale liquid chromatography.

Macroscale liquid chromatography.

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