Materials: 1 glass, pencil, paper towel or coffee filter, black Crayola marker (or any color on hand — not permanent), tape. ... How it works: This activity is done using paper chromatography.

Pencil or pen and paper for taking notes. ... Your color bands might be quite wide and artistic, whereas scientific chromatography paper would yield narrow bands and more-exact results.

Slide 1 of 3, A pencil line is drawn, and spots of ink or plant dye are placed on it. ... A pure substance will only produce one spot on the chromatogram during paper chromatography.

IN a search for an agent for revealing the position of choline and other N-methylated alkanolamines separated by chromatography on papers, iodine was found satisfactory. It can be either directly ...