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A fun chromatography lab with filter paper as the solid phase and isopropyl alcohol/water as the mobile phase. We tested 2 brands of water-soluble markers and 2 brands of permanent markers. The students got an appreciation that "green" isn't just "green".
This page is an introduction to chromatography using thin layer chromatography as an example. Although if you are a beginner you may be more familiar with paper chromatography, thin layer chromatography is equally easy to describe and more straightforward to explain.
Thin layer chromatography (TLC) is very useful to chemists as an analytical technique to separate and identify the compounds in a mixture. Only very small samples of the analyte are needed much less than a milligram.
Paper chromatography is a useful analytical technique used in chemistry to separate the components of a solution. Kids can learn some simple chemistry by watching and/or performing a very simple demonstration of chromatography used to separate the colours of ink or markers.