Teaching Applications

Potentiometry

Determining The Fluoride Content Of A Toothpaste Sample
With A Fluoride Ion Selective Electrode:

blankeDAQ Potentiometry Teaching Application - Determining The Fluoride Content Of A Toothpaste Sample With A Fluoride Ion Selective Electrode

A fluoride ion selective electrode is calibrated using the Multipoint Calibration Chart extension, to determine over what range of fluoride concentration the electrode has a Nernstian response. The calibrated electrode is then used to determine the fluoride content of a toothpaste sample, which can then be compared to the level quoted by the manufacturer.

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Keywords: Potentiometry. Ion Selective Electrodes.