Chromatography Virtual Lab
Chromatography is a method of separating out materials from a mixture. Ink is a
mixture of several dyes and therefore we can separate those colors from one another using
chromatography. When ink is exposed to certain solvents the colors dissolve and can be
separated out. When we expose a piece of paper with ink on it to a solvent, the ink spreads across
the paper when the ink dissolves.
Some inks are water-soluble, so you can use water as the
solvent. Inks which are not water soluble are often alcohol-soluble and you can use Isopropyl
alcohol as the solvent to create your chromatograph.
Different ink pens use different types of ink
and this is obvious when you expose the ink to a solvent. A banding pattern of the components of
the ink mixture is called a chromatograph.
To separate different inks and identify which ink color has the greatest Rf factor.
Chromatographic chamber with lid, measuring jar, Whatman filter paper, isopropyl