All Analysis articles – Page 5
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FeatureScaling new peaks
Nina Notman admires the plethora of different uses for the separation techniques known collectively as chromatography
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News
Chemists identify taste ‘blueprint’ for parmesan cheese
The compounds that make the Italian cheese unique have been pinpointed by food scientists
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News
Periodic table gains four new elements
Teams in Japan, Russia and the US credited with discoveries
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Resource
Colourimetric determination of copper ore
An ore is any rock from which a metal may be extracted. To decide whether an ore is worth mining it is necessary to find out how much of the useful mineral it contains. This experiment illustrates an example of how this might be done.
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Resource
Chemistry and the Human Genome
This book offers an account of the chemical science that underlies the publication of the draft sequence of the human genome.
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Resource
Spectroscopy in a Suitcase: IR student resources
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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Resource
Spectroscopy in a Suitcase: Mass spectrometry resources
This resource provides an introduction to mass spectrometry. It was produced to accompany our Spectroscopy in a Suitcase scheme which gives school students the chance to learn about spectroscopy through hands-on experience.
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Resource
Chemicals from seawater
Seawater is often called salt water but it contains various different salts. In this experiment you will separate some of these salts from the mixture.
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Feature
Exploding some myths
Declan Fleming investigates what’s really going on when alkali metals hit water
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Feature
Seeing is believing
Elinor Hughes discovers the technique that has imaged molecules directly for the first time
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Resource
Pale horse: analytical chemistry & forensics
This problem-based case study sets analytical chemistry within the context of a forensic investigation of a suspicious death.
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Resource
Launch-a-Lab: analyse organic pollutants
This problem-based case study involves tendering for a large contract to analyse the organic pollutants in ground water from Midshire River Authority. Students act as part of STS Contract Analysis Ltd., the company applying for the contract.
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Resource
A Dip in the Dribble: river pollution - C/PBL
This is a problem-based case study investigating of the environmental impact of river pollution.
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Resource
Radiography
Part of the art conservation process is the examination and investigation of the artefact to determine its structure, make-up or stability. This resource investigates the two main types of radiography used: x-ray and gamma.
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Resource
Making brown ink
This practical is suitable for all pupils as part of a general introduction to coloured substances.
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Defining the age of a rock or cave painting
Discover how it is possible to date rock and cave paintings, using science.
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Testing for enzymes
Enzymes are biological catalysts, they increase the speed of a chemical reaction. They are large protein molecules and these enzymes are very specific to certain reactions. Hydrogen peroxide decomposes slowly in light to produce oxygen and water. There is an enzyme called catalase that can speed up (catalyse) this reaction.
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Resource
A test to distinguish between ethanol and methanol
Reveal how methanol and ethanol behave differently when treated with iodine and sodium hydroxide solutions.
