ICP-OES Matthieu Chausseau, Alice Stankova, HORIBA Scientific, 16 rue du Canal, 91160 Longjumeau, France Introduction Salt is popular due to its use in cooking but there are many other applications using salt as a brine which is a saturated solution of salt, i.e., a solution containing 20 to 30 % sodium chloride. The food industry uses brines for food preservation in both human and animal nutrition. However, the food industry represents only 30% of the worldwide salt consumption. The chemical industry con- sumes 60% of the salt production, using it mainly as brine to produce chemicals such as chlorine, caustic soda and soda ash in the chlor-alkali industry and to produce pure metals such as Sodium and Magnesium. The petrochemical industry also makes use of brines for well drilling

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