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You are able to perhaps not go one day without placing your daily life in the hands of something made of metal. Whether it is the bridge you have to cross every single day on the way to work, the steel girders holding the roof above your head, or the parts holding your vehicle together, metal is an essential part of the modern world, and it is of extreme importance that it is of the best standard.

In addition to the lifesaving aspect, what about the aesthetic aspect of metal use? use? How can you understand that the 22 Carat ring you just bought is really of such a good quality, and not just a dud?

This really is where chemical testing is available in. Chemical tests may be used to assess the purity of a metal, enabling determination of the strength of a bridge, or the standard of jewellery. Two types of chemical testing are discussed in this essay: the salt spray test, and ICP analysis.

The Salt Spray Test can be used to test specially coated metals due to their corrosion resistance. It is a type of accelerated corrosion used to forecast how acceptable a specific coating is likely to be at preventing corrosion. The material under consideration is sprayed with salt, and the time taken for oxides to appear on the surface of the metal is recorded; the more corrosion resistant the material the longer it will take for oxides to seem. This test is rapid and simple to do but is not completely accurate, as corrosion is a complex process involving many interfering factors. None the less this technique is commonly found in industry to produce an estimate of a particular substance's expected corrosion resistance with time.

Inductively Coupled Plasma Mass Spectrometry (or ICP analysis) is just a method used to look for the concentrations of chemical elements in a sample. This strategy provides you with an indication of which contaminants may possibly be there, as well as a notion of the purity of your substance. It works by ionising the material in question by use of inductively coupled plasma, generated by strong magnets, and then using mass spectrometry to analyse the materials present. [ Drupal Building Blocks]