Chromatography (A-level only) (AQA A-Level Chemistry): Flashcards

Separation technique to separate & identify mixture components

The solvent that dissolves the mixture

The solid through which mobile phase passes

Plate coated with solid, solvent moves up

Column packed with solid, solvent moves down

Column packed with solid; gas passed through under pressure at high temp

Time for substance to pass through stationary phase

Larger particles move more slowly

More soluble in stationary = slower, in mobile = faster

Greater attraction to stationary = slower movement