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In search of more solutions

As sweet as? Detecting aspartame in a table-top sweetener

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Downloads

  • As sweet as? Detecting aspartame in a table-top sweetener - student handout

    Experiment | PDF, Size 0.33 mb

  • As sweet as? Detecting aspartame in a table-top sweetener - teacher

    Experiment | PDF, Size 0.37 mb
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Level

  • 16-18 years

Use

  • Practical experiments
  • Handout
  • Download

Category

  • Group work
  • Investigation
  • Biological chemistry
  • Biology
  • Food
  • Chromatography

Specification

  • England
    • A/AS level
      • AQA Chemistry
        • Practical assessment
          • 8.1 Use of apparatus and techniques
            • AT d: Use laboratory apparatus for a variety of experimental techniques including: titration, using burette and pipette, distillation and heating under reflux, including setting up glassware using retort stand and clamps, qualitative tests for ions and…
            • AT i: Use thin-layer or paper chromatography.
        • Organic chemistry
          • Amino acids, proteins and DNA
            • Proteins
              • Proteins are sequences of amino acids joined by peptide links.
              • Amino acids can be located on a chromatogram using developing agents such as ninhydrin or ultraviolet light and identified by their Rf values.
          • Chromatography
            • Chromatography
              • Chromatography can be used to separate and identify the components in a mixture.
      • Edexcel Chemistry
        • Use of apparatus and techniques
          • 9. use thin-layer or paper chromatography
        • Topic 19: Modern analytical techniques
          • Topic 19C: Chromatography
            • 7. be able to calculate Rf values from one-way chromatograms
        • Topic 18: Organic Chemistry III
          • Topic18B: Amines, amides, amino acids and proteins
            • 17. understand that the peptide bond in proteins: is formed when amino acids combine, by condensation polymerisation; can be hydrolysed to form the constituent amino acids, which can be separated by chromatography
      • OCR Chemistry A
        • Module 1: Development of practical skills in chemistry
          • 1.2 Practical skills assessed in the practical endorsement
            • 1.2.2 Use of apparatus and techniques
              • i) use of thin layer or paper chromatography
  • Scotland
    • Higher
      • SQA Chemistry
        • 2. Nature's chemistry
          • (f) Proteins
            • The link which forms between two amino acids is known as a peptide link, —CONH—, or also as an amide link.
        • 3. Chemistry in society
          • (e) Chemical analysis
            • (i) Chromatography
              • Chromatography is a technique used to separate the components present within a mixture. Chromatography separates substances by making use of differences in their polarity or molecular size.
  • Wales
    • A/AS level
      • WJEC Chemistry
        • Unit 4: ORGANIC CHEMISTRY AND ANALYSIS
          • 4.8 Organic synthesis and analysis
            • (g) use of chromatographic data from TLC/paper chromatography, GC and HPLC to find the composition of mixtures
  • Northern Ireland
    • A/AS level
      • CCEA Chemistry
        • Unit AS 1: Basic Concepts in Physical and Inorganic Chemistry
          • 1.8 Halogens
            • 1.8.4 recall the reaction of chlorine with water to form chloride ions and chlorate(I) ions;
        • Unit A2 1: Further Physical and Organic Chemistry
          • 4.9 Derivatives of carboxylic acids
        • Unit A2 2: Analytical, Transition Metals, Electrochemistry and Organic Nirtrogen Chemistry
          • 5.4 Chromatography
            • 5.4.3 interpret one-way and two-way paper and TLC chromatograms, including calculations of Rf values;
          • 5.8 Amides
            • 5.8.2 recall the hydrolysis of amides with acids and alkalis;
  • 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.
            • Activities
              • Madatory experiment 7.7: Separation of a mixture of indicators using paper chromatography or thin-layer chromatography or column chromatography.

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