Chromatography

A race on a plate

An interactive lesson with 5 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• Compounds split between a polar plate and a moving solvent.
• Less polar → travels further → higher Rf.
• Choose the solvent to spread spots between Rf 0.1 and 0.9.

Steps

1. A race on a plate
2. Who wins the race?
3. Tune the solvent
4. Measure an Rf
5. Is it pure?