2003•Journal of AOAC InternationalRequires access
Determination of Fluoride in Wine by Fluoride Selective Ion Electrode, Standard Addition Method: Collaborative Study
Bruno Trombella, Arthur Caputi, Daniel Musso, Anthony Ribeiro, T. H. Ryan, Collaborators:, G Andrade, Gerard P. Burns, Reinhard Eder, R G Gallego, J Garcia, A Goriel, Steve Kupina, Abdul Mabud, J Masschelin, Dominic Roberts, Dominique Tusseau, R. Wittkowski
Open publisher page 8 citations
Abstract
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 mg/L. The relative standard deviations of repeatability ranged from 1.94 to 4.88%; relative standard deviations of reproducibility ranged from 4.15 to 18.40%. HORRAT values ranged from 0.30 to 0.97. The average recovery was 99.97%. Based on the statistical results of this collaborative study, the Study Director recommends that this method be adopted First Action.