Modified zirconium-eriochrome cyanine R determination of fluoride

Analytical Chemistry


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The Eriochrome Cyanine R method for determining fluoride in natural water has been modified to provide a single, stable reagent solution, eliminate interference from oxidizing agents, extend the concentration range to 3 p.p.m., and extend the phosphate tolerance. Temperature effect was minimized; sulfate error was eliminated by precipitation. The procedure is sufficiently tolerant to interferences found in natural and polluted waters to permit the elimination of prior distillation for most samples. The method has been applied to 500 samples.
Publication type Article
Publication Subtype Journal Article
Title Modified zirconium-eriochrome cyanine R determination of fluoride
Series title Analytical Chemistry
Volume 29
Issue 11
Year Published 1957
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Analytical Chemistry
First page 1709
Last page 1712
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