Page 28 - Chemistry eBook
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Chromatography
CHROMATOGRAPHY: A process that separates a mixture into its different colors
• How it works:
1. Place a dot or line of a sample mixture on chromatography paper.
2. Place the end of the chromatography paper in a solvent (liquid or solution). 3. When the solvent reaches the sample mixture, the sample mixture will start
to run and the colors will be separated.
• Why does this happen? Different components move at different speeds along the chromatography paper.
Chromatography paper
Black ink (that is really a mixture of different colors)
Dot separated into five different colors
Liquid
28 © UNIT 1: INTRO TO CHEMISTRY
