Some mixtures such as pen ink have several different dye substances ____ in a liquid. The method to separate the different dye substances in the ink is called ____. Spots of the ink mixtures we want to study are placed along a line drawn in ____ on a piece of chromatography paper. The end of the paper is dipped into a ____ making sure that the spots do not come into contact with the solvent. The solvent travels up the paper, it ____ the dye substances because they are ____ . As all the solutes in the mixtures travel up the paper at different ____, they become separated. Eventually each ____ comes out of ____ and is left on the chromatography paper at a different points. We can compare the solute "spots" with the position of spots made by ____ materials, and so work out what is in each mixture.

Chromatography Method

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