Chemistry for the gifted and talented: chromatography

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This activity extends the students’ understanding of chromatography. It links chromatography with particle theory and develops the tools of analogy and modelling.

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Chromatography worksheet
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Level

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Specification

England
- GCSE
Scotland
- Higher
  - SQA Chemistry
    - 3. Chemistry in society
      - (e) Chemical analysis
        (i) Chromatography
        The details of any specific chromatographic method or experiment are not required. Depending on the type of chromatography used, the identity of a component can be indicated either by the distance it has travelled, or by the time it has taken to travel…
Wales
- GCSE
  - WJEC Chemistry
    - Unit 1: CHEMICAL SUBSTANCES, REACTIONS and ESSENTIAL RESOURCES
      - 1.1 THE NATURE OF SUBSTANCES AND CHEMICAL REACTIONS
        (i) atoms/molecules in mixtures not being chemically joined and mixtures being easily separated by physical processes such as filtration, evaporation, chromatography and distillation
  - WJEC Combined science
    - Unit 2: Chemistry 1
      - 2.1 THE NATURE OF SUBSTANCES AND CHEMICAL REACTIONS
        (i) atoms/molecules in mixtures not being chemically joined and mixtures being easily separated by physical processes such as filtration, evaporation, chromatography and distillation
Northern Ireland
- A/AS level
  - CCEA Chemistry
    - Unit AS 1: Basic Concepts in Physical and Inorganic Chemistry
      - 1.9 Acid-base titrations
        1.9.6 calculate concentrations and volumes for titration calculations;
        1.9.7 demonstrate knowledge of the term molarity, M, and the units of concentration, for example mol dm⁻³ and g dm⁻³;
Republic of Ireland
- Junior Cycle
  - Science
    - Chemical world
      - Building blocks
        2. Develop and use models to describe the nature of matter; demonstrate how they provide a simple way to to account for the conservation of mass, changes of state, physical change, chemical change, mixtures, and their separation.
- Leaving Certificate
  - Chemistry
    - 7. Organic chemistry
      - 7.5 Chromatography and Instrumentation in Organic Chemistry
        Depth of treatment
        Chromatography as a separation technique in which a mobile phase carrying a mixture is caused to move in contact with a selectively absorbent stationary phase.

Resource
Chemistry for the gifted and talented book introduction

Chemistry for the gifted and talented is a refreshingly challenging educational book containing a wide range of differentiated activities for use in school and college.
Class experiment
Leaf chromatography

In association with Nuffield Foundation

Investigate leaves using paper chromatography with this classroom experiment and follow-up questions
Resource
Chromatography | Knowledge check | 14–16

By Lyn Nicholls

Assess learning of paper chromatography with a higher and foundation worksheet