title: Fluoride determination with a micro flow-calorimeter.
abstract: Fluoride is determined by an integration technique with a flow calorimeter. All samples are absorbed on an anion-exchange resin before being brought into the calorimetric system. The reaction between hydrofluoric add and sodium hydroxide is used in the determinations. The method is applied to samples with between 7 mug and 5 mg of fluoride. The confidence limit is +/-2-5 mug for small samples and +/-25 mug for large samples. The enthalpy of the reaction H(+) + F(-) --> HF((aq)) was found to be 13.77 +/- 0.08 kJ mole .
authors.affiliation: Department of Analytical Chemistry, Chemical Center, University of Lund, Lund, Sweden.
authors.forename: C
authors.initials: C
authors.lastname: Johansson