still used today; this technology couples a GC to an IR, which detects compounds by applying IR. to the gas effluent. Recent improvements in the hyphenated technique, GC/IR, may provide a simple alternative or. supplemental approach to GC/MS for the identification of certain compounds.
Vans' classic shoe style is made out of canvas, and sometimes suedeor leather. The brand makes an effort to create environmentallysustainable footwear, and uses recycled materials wheneverpossible.
These have been used to create cushioning systems in modern running shoes. In the 1970's a plastic called 'ethylene vinyl acetate (EVA)' was developed. This material revolutionised the construction of sports shoes. It was made up of tiny air bubbles that provide cushioning and absorbs shock.efore we investigate the type of footwear used by our athletes let's examine a modern football boot. If we look carefully we can see that it is made from a variety of materials chosen because of their individual properties.