Chromatography can be used to separate mixtures of coloured compounds.
Simple chromatography is carried out on paper. A spot of the mixture is placed near the bottom of a piece of chromatography and the paper is then placed upright in a suitable solvent, e.g. water.As the solvent soaks up the paper, it carries mixtures with it. Different components of the mixture will move at different rates, this separates the mixture out.
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