Chemist
Person who carries out laboratory research on the composition and chemical structure of certain elements or compounds and on their properties, with a view to developing or improving processes, methods or products (plastic materials, synthetic fibers, products food, pharmaceutical products, etc.) She determines which materials and manufacturing and processing processes are most suitable to obtain products with the desired characteristics (flexibility or rigidity, permeability or impermeability, etc.). She may also have to do a chemical expertise (for example, determine the origin or verify the authenticity of a work of art) or to solve various problems relating to energy, the environment, diet or health.