All Analysis articles
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Interview‘You don’t need to choose between the arts and science’
Meet Katherine Curran, a chemist applying her polymer know-how to the conservation of plastic museum objects
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Feature
Plastic conservation
Usually we want plastics to degrade, so what about when we don’t? How chemists are helping museums preserve plastics
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Feature
Toxins in food
Many foods contain toxins such as oxalic acid. How do we balance the risks and benefits to health?
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Liquefying paint – retrieval practice and quick-fire questions
Encourage your 16–18 students to make connections between topics with this scaffolded approach
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The chemistry of chemical weapons
In this activity you will look at the chemistry behind a number of chemical weapons that have been employed throughout history
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News
Water found in asteroid dust
Water detected in samples from an asteroid’s surface for the first time
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Transition metal chemistry starters (16–18)
Help your students become proficient in answering questions on the transition metals with these Starter for ten questions including redox titrations, colourimetry, and catalysis.
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Structure determination starter (16–18)
Practice interpreting 1H and 13C NMR, mass spectra, and thin layer chromatograms with these Starter for ten questions.
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Analysis starters (16–18)
Practice using analysis skills with these mass spectrometry and infra-red spectroscopy Starter for ten questions.
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Chromatography: Techniques
Learn about two fundamental techniques underpinned by chromatography: high performance liquid chromatography (HPLC) and gas chromatography–mass spectrometry (GC-MS)
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Nuclear magnetic resonance (NMR) spectroscopy: Hydrogen
Numclear magnetic resonance (NMR) is particularly useful in the identification of the positions of hydrogen atoms (1H) in molecules. This is an invaluable technique in the identification of organic compounds and commonly used in analytical laboratories
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Ultraviolet–visible (UV-vis) spectroscopy: Explanation of colour
Why do some compounds appear certain colours? The electron configuration of transition metal complexes is essential in understanding their behaviour. Understand the theory of how d-orbitals influence colour through their shape and crystal field splitting
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Ultraviolet–visible (UV-vis) spectroscopy: Colour in transition metal compounds
Transition elements are found in the d-block of the periodic table and the most interesting feature of transition metal compounds is that most are highly coloured.
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Ultraviolet–visible spectroscopy (UV-vis): The origin of colour in organic compounds
DIscover how unsaturation in organic compounds leads to colour. Such electon configuration allows transitions between orbitals of lower energy and antibonding orbitals occur when electromagnetic radiation of suitable energy is absorbed by the molecule.
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Infrared (IR) spectroscopy: More complicated molecules
Learn about the fundamental physics responsible for the IR spectra of more complicated molecules. Bringing together vibrational modes, bond strengths and dipole moments — and how these translate to the recorded spectra.
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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
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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
