Coulometric titration of fluoride with fluoride ion activity electrode

Measurements with fluoride ion selective electrode

Where E0 is the standard electrode potential, R is the universal gas constant, T is the absolute temperature, z is the number of moles of electrons transferred in the cell reaction or halfreaction, F is the Faraday-constant, and cox and cred are the concentrations of the oxidized and reduced forms of the component. The potential of the hydrogen electrode is declared to be 0.000 V at all tempera...

Determination of fluoride in wine by fluoride selective ion electrode, standard addition method: collaborative study.

The accuracy, precision, and reproducibility of a rapid method for determination of fluoride in wine, using a fluoride selective ion electrode, were established by a collaborative study involving 12 laboratories, 5 in Europe and 7 in the United States. The laboratories assayed 6 Youden pairs of fluoride-fortified, red and white wine samples with fluoride concentrations ranging from 0.2 to 3.0 m...

Ion Selective Electrode. the Measurement of Fluoride Ion Activity in Mouth Wash, Toothpaste and Drinking

Remember to bring in your own drinking water sample to be tested for Fluoride. Ahead of the actual laboratory work, you need to sign-out from the stockroom a 500 mL plastic bottle in which to store your drinking water sample. Note valuable laboratory time can be saved if your group has read this experiment ahead of time. It is suggested that one of the partners start to dissolve the toothpaste ...

Validation of an ion selective electrode system for the analysis of serum fluoride ion

A high impedance unit was developed for use with a fluoride/pH electrode system for the measurement of serum fluoride. The linearity, accuracy, precision and detection limit of the system is reported. At a pH of 1.55, the system was linear over a range of serum fluoride concentrations up to 100 mumol l(-1), with a lower limit of detection of 0.3 mumol l(-1). Recoveries at this pH were 94-105% i...

Coulometric Titration with Electrogenerated Tin(II). Titration of Platinum(IV)