All Analytical chemistry 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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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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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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SoundbiteA comet starts to tell its watery tale
Nina Notman probes what measurements taken onboard the Rosetta spacecraft mean for our understanding of the origin of water on Earth
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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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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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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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ResourceStudents’ 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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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 ...
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ResourceSolving a puzzle using spectroscopy | Chemistry Olympiad worked answers
Try this worked example of a Chemistry Olympiad question, identifying a range of compounds using spectroscopy. Includes video walkthrough and transcript.
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ResourceSchools’ Analyst past papers 2014
Measure the acidity level of sprite, determine the weight of vitamin C in a tablet or test the copper content of water with these previous Schools’ Analyst competition challenges.
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ResourceFaces of Chemistry – National Gallery
These videos look at how chemical techniques have helped solve the mystery of the Portrait of Alexander Mornauer.
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ResourceFeynman's flowers - Nano scale citizen science.
By taking part in Feynman’s flowers by crowdcrafting: You could help translate thousands of STM images of molecules for their magnetic properties.
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ResourceSpectroscopy
Spectroscopy is an invaluable tool in both the qualitative and quantitative analysis of substances. In this set of activities the focus is on colourimetry, UV/Visible spectrometry and Fourier Transform Infrared (FTIR) spectrometry.
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FeatureForensic students are getting their hands dirty
Practical research projects are vital in the training of the next generation of forensic scientists, explains Matthew Almond
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ResourceThe Great Recovery
The Great Recovery is an RSA project launched in September 2012 supported by Technology Strategy Board and key industrial players.