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How does the solvent effect chromatography?

1 Answer

Chromatography is a technique used to separate the components of a mixture. Different solvents will dissolve different substances.

A polar solvent (water) will dissolve polar substances (water soluble ink in the video below).

A non-polar solvent will dissolve non-polar substances. Not in the video, but if you want to do chromatography with ink from a permanent marker you would need to use a different solvent (an alcohol could work).

Here is a video which shows a paper chromatography experiment which was conducted to separate the pigments found in a black overhead marker.

video from: Noel Pauller

Hope this helps...
Noel P.