PROCEDURE and PRECAUTIONS

1. Use a pencil to draw a thin line near the bottom of the paper. Make sure it is not too near the bottom.
2. Mark a cross for each mixture on the line.
3. Mark a spot of color/dye/mixture on each respective crosses and allow to dry.
4. Put chromatography paper in solvent. Ensure top of solvent does not cover the mixture.
5. Observe as spots move up the chromatography paper.

Use a pencil to draw the thin line as a pen may have ink that is soluble in the solvent. The ink may move up the chromatography paper and ruin the experiment.
Allow the color/dye/mixture to dry first before putting the chromatography paper in the solvent. This is to ensure that the ink will not totally dissolve in the solvent while it is still wet.
You must make sure that the solvent does not cover the mixture as the mixtures may dissolve totally in the solvent,