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fluoride ise electrode

Have you ever heard of fluoride? Fluoride is a naturally occurring mineral found in many rocks, soils, and water. It is also a chemical added to toothpaste, and drinking water, as it helps to keep our teeth strong. After eating or drinking, part of the process is susceptible to acids in food and drinks that can damage teeth. Fluoride protects our teeth from this type of damage. But excessive dosage of fluoride can be detrimental to our health. This is exactly why scientists and engineers rely on certain tools such as fluoride ion selective electrodes to determine fluoride concentrations!

The fluoride ion selective electrode is an instrument used to determine the fluoride concentration present in a sample. This happens when fluoride ions are in the sampled solution where a small electrical current is generates. This current is then measured, which tells us exactly how much fluoride is in the sample we test. This is a process that is really essential, particularly to ensure safe levels of fluoride, high enough to have a caries-reducing benefit, but not too high to make drinking water dangerous.

A simple overview

Ion selective electrodes for fluoride consist of three basic components: a sensing element, a reference electrode, and an electrolyte solution. It is off-the-shelf device that is modified with a new detection layer, which forms a surface with an affinity towards fluoride. In the presence of fluoride ions, they bind to this element. The other key element, the reference electrode, ensures stable voltage so that the electrode accurately measures the flow of electrical current.

When we want to use this electrode we first dip it in a sample that has fluoride ions. The sample could be anything from a cup of water, a tube of toothpaste, or a sample taken from our bodies, such as urine or blood. The sensor detects when the sample’s fluoride ions bind to the sensing element and generate an electrical current. This current is then read by the electrode, so we can figure out how much fluoride is present.

Why choose Labtech fluoride ise electrode?

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