Issue 3, 1984

Photometric titration of fluoride with zirconyl chloride using the brinkmann probe absorptiometer

Abstract

Fluoride masses in the range 0.15–25 mg in a total volume of 30 cm3 were titrated photometrically at 520 nm using zirconyl chloride as titrant and sodium alizarin-3-sulphonate as indicator. The instrument used was the highly suitable Brinkmann fibre-optic probe absorptiometer. The influence of pH and other variables was assessed. The coefficient of variation for medium and high fluoride concentrations in the range covered was 0.18%. Phosphate, aluminium and iron(III) interfere badly. Comparison was made with the lanthanum nitrate potentiometric titration.

Article information

Article type
Paper

Analyst, 1984,109, 395-400

Photometric titration of fluoride with zirconyl chloride using the brinkmann probe absorptiometer

P. E. A. Asea and M. A. Leonard, Analyst, 1984, 109, 395 DOI: 10.1039/AN9840900395

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