Chromatography Virtual Lab 2021.docx - Chromatography...

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Chromatography Virtual Lab Introduction: 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. Purpose: To separate different inks and identify which ink color has the greatest Rf factor. Materials: Chromatographic chamber with lid, measuring jar, Whatman filter paper, isopropyl

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