Pesselman, R.L. Loken, R.G. Hoffman, M.J. Feit, M.J.

Determination of fluoride in cocoa powder by ion-selective electrode - Nov-Dic 1989

++ 2 tab. 8 ref. Sum. (En)

A method to determine free fluoride concentration in soluble cocoa powder by a fluoride-selective electrode was developed and validated. Calibration was linear over the 0.51 to 3.03 ppm range. Free flouride ion concentration data were in the 0.52 to 1.49 ppm range, with recoveries varying from 81 percent to 89 percent using a standard addition procedure.


CACAO EN POLVO
FLUORUROS
COMPOSICION QUIMICA
METODOS
ANALISIS QUIMICO