All Analytical chemistry articles – Page 8
-
ResourceChallenging Plants: Analytical Methods
Investigations of plants and soil often require the application of some basic analytical methods. Some important ones are given here.
-
Resource
Fatty acids in food supplements
A resource involving the investigation of the chemical composition of some food supplements that contain omega-3 and omega-6 fatty acids.
-
Resource
Technician in trouble! What solutions are which?
Investigate different chemical solutions with this experiment that explore reactions of acids and alkalis, as well as neutralisation. Includes kit list and safety instructions.
-
Resource
Funny felt pens
Find out how colour changing pens work in this practical into acids and alkalis in inks. Includes kit list and safety instructions.
-
Feature
How much horse meat?
It's a simple enough question, but the media, the public and even government officials are having trouble understanding just how much horse meat is in some processed food. Ian Farrell makes sense of the confusion
-
Resource
School’s Analyst past papers 2013
Challenge your students to carry out back titrations with these previous Schools’ Analyst questions
-
Resource
Parabens in household products
This is a laboratory-based investigation (either using GC or HPLC) of preservative chemicals commonly found in household products - parabens.
-
Resource
Forensic Analysis: Laboratory Manual
Pre laboratory exercises and laboratory practicals in Forensic Analysis.
-
The Mole
A nose for trouble
Ian Le Guillou finds out how new technology and chemistry are catching up with sniffer dogs in the race to rescue people trapped in disaster zones
-
Soundbite
Detective work and food fraud
How did horse meat remain undetected in the food chain for long enough to reach supermarket shelves? Ian Farrell investigates
-
Feature
Spectroscopy in your classroom - portable analysis
Tracy McGhie explains how your students can solve a murder mystery using state-of-the-art equipment
-
Resource
Challenging Plants: Phytomanagement - Practicals
Plants have much to offer in terms of phytoremediation, phytoextraction and the potential of using plants to mine metals. This resource is designed to help students realise this potential knowledge and understand the key underpinning scientific principles.
-
Resource
On This Day - Nov 20 : Francis Aston died
He was awarded the Nobel Prize in Chemistry in 1922 for his development of the mass spectrograph, a device that separates atoms or molecular fragments of different mass and measures those masses with remarkable accuracy.
-
Resource
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.
-
Resource
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.
-
Resource
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 ...
-
Resource
Infrared Spectrometer
Watch an illuminating six-minute video explaining how infrared spectroscopy works.
-
Resource
Schools’ Analyst past papers 2012
Investigate the amount of active ingredient in aspirin tablets, paracetamol tablets and cold and flu remedies.
-
Feature
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
-
Resource
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.
