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Chemistry · Paper 2 · Foundation + Higher · C8

Required practical: paper chromatography

Key ideas1 of 3

Set it up carefully

Draw a pencil baseline near the bottom of the paper. Add small spots of the samples with a capillary tube; let them dry. Place the paper with its bottom in solvent, but keep the baseline above the solvent surface.

Covered beaker with paper dipping into solvent. The pencil baseline and sample spot are above the solvent surface; the paper bottom is below it.

Next: Read a chromatogram →
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Foundation + Higher · C8. All C8 lessons are shared by Foundation and Higher Tier.

AQA Combined Science Trilogy 8464 · 5.8.1.3 · Required practical 12. Original notes, questions and diagrams. Models are simplified, not to scale; illustrative data are labelled.