Fluorine is the most active element known. Therefore, in applications by environmental engineers, fluorine, element shape is not used much. The fluorine atom in the neutral state is called fluoride when it enters an ion state by taking an electron. Fluoride-containing substances are also commonly referred to as fluoride. Since fluoride is an ion, it does not take place in nature on its own, it can only take place in a solution.

Fluoride is naturally present in water. However, it is also possible to add to the drinking water in a controlled manner. However, in recent years this is no longer done because of its harmful effects. If the fluoride concentration is too high, this can cause bone and tooth disorders in humans and animals. For this reason, it is of great importance that fluoride analyzes are carried out accurately for the health of living things.

Fluoride, which is not produced from natural substances, is also found in toothpastes and daily cleaning products. A concentration of one milligram of fluoride is necessary for the protection of teeth and health. However, fluoride may cause health problems due to excess fluoride intake during the development of teeth. Likewise, excess fluoride can cause overdevelopment of various organs or tissues. Another cause of various joint diseases is the intake of excess fluorine.

Fluoride is actually a mineral found in nature. However, the fluoride encountered in toothpastes or waters is slightly different. People are most often exposed to fluoride through toothpastes, pesticides, beverages, waters and medicines. However, fluoride is not as innocent as it is thought to be and should be cautious.

Today, most sedatives contain fluoride at a percentage of 25.

For the determination of fluoride in water, very sensitive guidelines are used in laboratories. The most important of these is the colorimetric method and electrode method. The colorimetric method is based on the reaction between fluoride and zirconium dye. The electrode method is very easy and ion selective electrodes are used for fluoride determination.