All Analytical chemistry articles – Page 3

  • dipole moment

    Infrared (IR) spectroscopy: Energy levels

    Infrared spectroscopy reflects the type of bonding present within a molecule, learn how the energy levels of bond vibrations and dipole moments contribute to the frequencies observed

  • dispersive spectrometer

    Infrared (IR) spectroscopy: Uses of IR spectroscopy

    Infrared spectroscopy is a valuable technique in analytical chemistry. Learn about how spectra arise and the instruments used to measure them

  • vibrational frequencies

    Infrared (IR) spectroscopy

    Absorption of infrared radiation brings about changes in molecular vibrations within molecules and ‘measurements’ of the ways in which bonds vibrate gives rise to infrared spectroscopy. Atom size, bond length and bond strength vary in molecules and so the frequency at which a particular bond absorbs infrared radiation will be different over a range of bonds and modes of vibration.

  • electromagnetic radiation

    Introduction to spectroscopy

    Get back to basics with this primer on the principles of spectroscopic techniques, including infrared (IR), ultraviolet-visible (UV-vis) and nuclear magnetic resonance (NMR). To make it even easier, each technique has clear explanations and descriptions supported by animations.

  • adsorption chromatography


    Chromatography covers a broad range of physical methods used to separate and/or analyse complex mixtures. It can be preparative or analytical and has a wide range of applications.

  • eye rods and cones

    Ultraviolet–visible (UV-vis) spectroscopy

    Learn how UV-visible radiation can be used to shed light on chemical identification and how our senses percept colour. From the theory behind molecular orbitals and electronic transitions to the application of this technique with relatable examples. Includes examples and interactive simulations to aid understanding.

  • mass spectrometer

    Mass spectrometry (MS)

    Mass spectrometry is a powerful technique in the modern analytic laboratory. Learn the fundamental theory behind the operation of a mass spectrometer.

  • nuclear magnetic resonance

    Nuclear magnetic resonance (NMR) spectroscopy

    Discover how nuclear magnetic resonance (NMR) spectroscopy works, with this series of topics breaking down the fundamental theory. Covering the electronic environment of atoms right up to demonstrating the practical identification of molecules. Includes examples and interactive simulations to aid understanding.

  • A photo showing students working on a Chemistry Practical

    Reinventing the chemistry practical


    Get students to tackle practicals without you 

  • Image

    Smartphone spectrometer

    In association with

    Make your own spectrometer with a DVD and a smartphone camera. This resource includes teacher, technician, and student guides.

  • Metal padlock on blue door

    Escape the classroom: basic puzzles


    Six puzzles to challenge and enthuse your students

  • A hand examines clear glass bottles

    Finding the fake booze


    Ever wondered what Raman spectrometry is? Here’s how it can find out what’s in a bottle without opening it.

  • RES00002201-L

    Qualitative analysis quizzes

    In association with

    Find out more about our quizzes and watch the associated videos. The quizzes consist of 10 questions in each section and focus on providing formative feedback to students. The range of question types includes text response, numerical response, drag and drop and multiple choice. These quizzes are available free to ...

  • Illustration of a kitchen with the chemical structures of molecules found in indoor air pollution

    Pollution in your home


    Measuring air pollutants lurking indoors, with classroom resources

  • Burette taps

    Making measurements


    Help your students use appropriate apparatus to make and record a range of measurements

  • Image

    Teach functional groups

    To illustrate the differences in reactivity of isomeric alcohols, try using the iodoform demonstration in the video. Follow the discussion scenario in sequence for tips to help your students understand a difficult concept in carbon chemistry. 

  • An array of milk bottles on shelves

    Chromatography fights food fraud


    How chromatography helped solve a food safety crisis – includes classroom resources.

  • Small heaps of salt in a wet field

    Evaporation, filtration and crystallisation


    How to add variety and context to lessons while getting students familiar with apparatus

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    Spectroscopy in a Suitcase resource packs

    Use this material either alongside our Spectroscopy in a Suitcase scheme, or as a stand-alone resource to learn about spectroscopy. Cover the principles of spectroscopic techniques, and use real-life contexts to demonstrate their applications.

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    Testing for negative ions

    This activity is in two parts; first, students make observations while carrying out tests for various negative ions, then they use their observations to help identify the negative ions present in a number of solutions.