Fluoride in Seawater: Measurement with Lanthanum Fluoride Electrode

Science  11 Jul 1969:
Vol. 165, Issue 3889, pp. 178-180
DOI: 10.1126/science.165.3889.178


Fluoride ion concentrations are quickly and easily determined in seawater by means of a fluoride-selective electrode. Samples require little pretreatment; a determination takes 15 minutes; error limits are 5 percent; equipment required is rugged, inexpensive, and motion-insensitive; and minimum demands are made on the operator.