1.11: Understand How a Chromatogram Provides Information about the Composition of a Mixture

PAPER CHROMATOGRAPHY - COMPOSITION OF A MIXTURE

Diagram showing the Composition of an Ink using Paper Chromatography

COMPOSITION OF A MIXTURE: Chromatogram shows the composition of mixture as different coloured substances (components) and will spread apart as they have different solubilities so will travel at different rates Pure susbtance will only produce one spot on chromatogram during paper chromatography In the diagram above, Red, Blue, and Yellow are three pure substances, whilst sample on left is a mixture of all three