All Analytical chemistry articles – Page 9
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On This Day – Jul 29 : Isidor Isaac Rabi was born
He discovered the phenomenon of nuclear magnetic resonance (NMR) while researching molecular beams in 1938. Eight years later, Felix Bloch and Edward Purcell used Rabi’s work to invent the NMR spectrometer, a highly useful tool for analysing molecules.
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On This Day - Dec 31 : Drunkometer was invented
Invented by Rolla N. Harger of Indiana University School of Medicine, it was the first successful machine for testing blood alcohol content through breath testing. The machine used acidified potassium permanganate solution as a colour indicator for the amount of alcohol present.
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Synthesis and Analysis
Synthesis and analysis are two key aspects of chemistry, particularly when exploring the role of chemistry in an industrial context and relating the products formed to applications in everyday life. In order to successfully synthesise any material it is necessary to have an understanding of the starting materials, the ...
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Infrared Spectrometer
Watch an illuminating six-minute video explaining how infrared spectroscopy works.
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Schools’ Analyst past papers 2012
Investigate the amount of active ingredient in aspirin tablets, paracetamol tablets and cold and flu remedies.
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Teaching chemistry in 3D using crystal structure data
Fundamental topics such as stereochemistry are taught in 2 or 2.5D - the Cambridge Structural Database provides an interactive 3D solution
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Schools’ Analyst past papers 2011
Use these past papers for background information on refractometry, HPLC, Beer-Lambert law and atomic emission spectroscopy or even try the experiments yourself.
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Forensic science and the case of Dr Mario Jascalevich
Forensic science is depicted in several television programmes as a near-perfect means of solving major crimes. In real life, forensics may sometimes point to guilt, but in the end be insufficient to prove it. This is the account of one such case
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Look who discovered caesium...
Although Robert Bunsen and Gustav Kirchhoff are often credited with the discovery of caesium, this honour belongs to Carl Setterberg
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Schools’ Analyst past papers 2010
Develop analytical skills with contextualised problems commonly faced by analytical chemists.
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Modern mass spectrometry
Advances in mass spectrometry (MS) technology over the past 30 years have pushed this technique into the hands of biologists and biochemists
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Mass spectrometry - the early days
1912, physicist Joseph John (J. J.) Thomson discovers mass spectrometry
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Review
Chemistry3: introducing inorganic and physical chemistry
Andrew Burrows, John Holman, Andrew Parsons, Gwen Pilling and Gareth Price
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Fluorescence lifetime imaging microscopy
Scientists are using this non-invasive technique to cast light on the workings of living cells to learn more about the molecular mechanisms involved in cancer, allergies and immune responses
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The Mole
Kew the celebrations
The Royal Botanic Gardens, Kew, celebrates 250 years of horticulture and science.
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Lesson plan
Determining the structure of compounds | 16–18 years
Examine data relating to the structure and complexity of compounds, including mass, infrared and 1H NMR spectra
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Lesson plan
Investigating the chemistry of how fireworks work | 14-16 years
Explore the principles behind fireworks and what makes the different colours we see when they go off using this lesson plan with activities for 14–16 year olds.