Comparative study of the usual methods for determination of fluorine in water from natural fountains

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Keywords

fluorine in water, determination
water from natural fountains, fluorine determination

How to Cite

1.
Zenebon O, Yabiku HY, Ressinetti NA, Lara WH. Comparative study of the usual methods for determination of fluorine in water from natural fountains. Rev Inst Adolfo Lutz [Internet]. 2022 Feb. 22 [cited 2024 Jul. 22];39(2):161-4. Available from: https://periodicos.saude.sp.gov.br/RIAL/article/view/37311

Abstract

A comparison was made of three procedures for de.termination of the fluorine content of 10 sa mp les of drinking water obtained from natural fountains. A colorimetric procedure using the SPADNS 4,5-dihydroxy-3- (parasulfophenylazo ) -2,7-naphthalenedisulfonic acid trisodium salt) reagent, a titulometric method with thorium nitrate and a potentiometric procedure using a sp ecia l iluoride electrode were tested. Thc first two methods were a lso tested after previous distillation of the sample for elimination ai' interfering substances. No appreciable difference arnorig the methods was found.

https://doi.org/10.53393/rial.1979.39.37311

References

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