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After completing the activity Paper Chromatography of Food Dyes on page 245, discuss paper chromatography and the separation of the food dyes according to their components and polarity of the compounds. Discuss your conclusions from your data with the theory of paper chromatography.Click here for the assessment rubric.

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meerkat18
Paper chromatography is a method used in organic and analytical chemistry which separates pigments based on polarity differences. The mobile phase runs through the stationary phase. As the solvent travels up the paper, the different components of the dyes travel at different rates and the components are separated into colored spots. Components of the dyes will separate according to how strongly they adsorb on the stationary phase or the paper.