Column chromatography is the method of stationary phase chromatography which was stuffed in a first column or cylindrical openings 2 coated inside a glass capillary in a very narrow way. In broad terms, chromatography columns including classical column chromatography used in the preparation of quality and modern chromatography columns used in the analysis as HPLC, GC ... here only technical presentation column chromatography classic. Size large columns, column chromatography is used primarily classical in extraction and isolation of these substances.
In classical column chromatography, people use the glass column diameter 1 - 5 cm long 30 - 100cm to stationary phase. Fillers column size from 15 - 300μm. The larger the particle size, column solvent through the easier but less effective separation. With stuffing materials is silica gel column for chromatography columns, it is often divided into 3 categories is fine (15 - 40μm), medium (40 - 63μm) and coarse (63 - 200μm). Sample loaded onto the column vary according to the complexity of form and separation capabilities of the system. Sample rate / stationary phase is usually 1/30 - 1/100 or more. In the first couple of techniques, this percentage may be increased to 1/10.
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