All Analysis articles – Page 7
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FeatureThe impossible water sensor
Hundreds of different chemicals can ruin our water, so measuring their levels is vital. Josh Howgego investigates whether building sensors that can do the job cheaply and remotely will ever be possible
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SoundbiteDual personality of light caught on camera
Is it a wave or is it a particle? We might know the answer, (Spoiler alert: it’s both!) but it is reassuring nonetheless to see the pictures that prove it, says Nina Notman
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ResourcePlastics conservation - Barbie and friends
This resource provides the essential knowledge needed to keep plastic pieces in the best possible condition so that they can continue to be enjoyed for many years.
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ResourceWhich sodium salt is which?
How does sodium interact with other chemicals, and how can you identify them? Includes kit list and safety instructions.
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ResourceWhich gas is which?
Five mystery gases, and a problem to solve. Students must identify each gas, and do so quickly. Includes kit list and safety instructions.
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ResourceVintage titrations: tannin in wine
Explore Redox titrations using potassium manganate(VII), with this tannin experiment. Includes kit list and safety instructions.
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ResourceVintage titrations: sulfur dioxide concentrations in wine
Explore redox titrations using iodine, and discover the sulfur dioxide concentrations in wine. Includes kit list and safety instructions.
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ResourceThree isomeric alcohols
Learn about the reactions of primary, secondary and tertiary alcohols, using laboratory tests. Includes kit list and safety instructions.
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ResourceOnly dust - is there a sign of life?
Discover the link between organic life, and dust, designing an experiment of your own from junk materials. Includes kit list and safety instructions.
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FeatureIdentifying extraterrestrial materials
Meteorites can be bought cheaply online and offer an excellent laboratory teaching tool, explain Luis Lahuerta Zamora, Salvador Lahuerta Zamora and Ana Mellado Romero
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ResourceRi Christmas Lectures® 2012: Group 1 Flame Tests
A teaching resource on the group 1 flame tests, supported by video clips based around the Royal Institution 2012 Christmas Lectures® Video: Group 1 flame tests Video: Lithium flame test Video: Sodium Flame Test Video: Potassium ...
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FeatureGood chemistry
There are all sorts of ways chemists can use their skills to aid global development, writes Josh Howgego
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FeatureThe art detectives
Emma Stoye finds out how spectroscopic techniques allow scientists to look over the shoulders of old masters
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The MoleThe monks’ tales
Kathryn Roberts looks at how modern spectroscopy lets us discover the secrets of 1500-year-old manuscripts without leaving the library
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The MoleTrade secrets... Explosive detection
Secrets of the trade: Jonathan Hare explores an alternative approach for detecting bombs called nuclear quadrupole resonance
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ResourceTeacher’s resource: UV / Visible Spectroscopy
UV-visible spectroscopy is a technique that readily allows one to determine the concentrations of substances and therefore enables scientists to study the rates of reactions, and determine rate equations for reactions, from which a mechanism can be proposed. As such UV spectroscopy is used extensively in teaching, research and analytical ...
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ResourceIR teacher resources: Infrared spectroscopy
One of the first scientists to observe infrared radiation was William Herschel in the early 19th century. He noticed that when he attempted to record the temperature of each colour in visible light, the area just beyond red light gave a marked increase in temperature compared to the visible colours. ...
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ResourceSpectroscopy introduction
Spectroscopy is the study of the way light (electromagnetic radiation) and matter interact. There are a number of different types of spectroscopic techniques and the basic principle shared by all is to shine a beam of a particular electromagnetic radiation on to a sample and observe how it responds to ...