The shopping list example is called planar chromatography. The running ink seems to defy gravity, moving up the paper due to the capillary effect.

In this experiment, the water moves across the paper by a force called capillary action. The water carries some parts of the ink components further than others, and the colors separate out into a ...

As a result, components of the solution separate and, in this case, become visible as strips of color on the chromatography paper. Will your marker ink show different colors as you put it to the test?

The idea behind this experiment’s use of paper chromatography is that as the ink is carried up the paper by the water, the different dyes in the ink will separate depending on how much they ...

A demonstration of the key points of the required practical to investigate the separation of substances using paper chromatography for GCSE chemistry and combined science.

Learn about chromatography and make fun art in this science experiment that you can do right from home.

Miss Sarah and Miss Nylah use coffee filters and markers to make their own chromatography.

As the water travels through and down the paper, it picks up ink particles and carries them along with it. This same process can be put to good use as a technique called paper chromatography.

Reversed Pervasion is an ongoing exhibition that shows artists' diverse, experimental explorations of ink, water and paper－three traditional mediums of Chinese painting.