| Abstract: | 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. |
| Genre: | Article |
| ProdID: | 70010692 |
| Citation Author: | Thatcher, L. L. |
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| Citation End Page: | 1712 |
| Citation Issue: | 11 |
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| Citation Language: | English |
| Citation Larger Work Title: | Analytical Chemistry |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | Modified zirconium-eriochrome cyanine R determination of fluoride; 1957; Article; Journal; Analytical Chemistry; Thatcher, L. L. |
| Citation Start Page: | 1709 |
| Citation Volume: | 29 |
| Citation Year: | 1957 |
| Type: | citation/reference |
| Text: | Modified zirconium-eriochrome cyanine R determination of fluoride; 1957; Article; Journal; Analytical Chemistry; Thatcher, L. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1957 00:00 -0600 |
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