Determination of Fluoride in Water Solutions by High-Resolution Molecular Absorption Spectrometry

Authors

  • Ľ. Machyňák Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, STU Bratislava, Bratislava
  • E. Beinrohr Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, STU Bratislava, Bratislava
  • M. Němeček Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, STU Bratislava, Bratislava
  • F. Čacho Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, STU Bratislava, Bratislava

Keywords:

fluorides, mineral water, molecular absorption spectrometry

Abstract

Trace concentrations of fluoride in aquatic samples were determined by graphite furnace continuum source high-resolution molecular absorption spectrometry (HR‑CS GF MAS) by making use of the formation of diatomic SrF species. The influence of strontium concentration, ashing, and atomization temperatures were investigated.

The detection limit and precision of the method are 30 μg L–1 and 3.6 %, respectively. No spectral interferences were detected and chemical interferences were caused only by high chlorine concentrations. Analysis of certified reference material confirmed the accuracy of the method. The method was used for analysis of mineral waters.

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Published

2017-10-15

How to Cite

Machyňák, Ľ., Beinrohr, E., Němeček, M., & Čacho, F. (2017). Determination of Fluoride in Water Solutions by High-Resolution Molecular Absorption Spectrometry. Chemické Listy, 111(10), 663–666. Retrieved from http://blog.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/1504

Issue

Vol. 111 No. 10 (2017)

Section

Articles