| Abstract: | The zirconium-alizarin method has been modified to facilitate the convenient and accurate determination of small amounts of fluoride in a large number of water samples. Sulfuric acid is used to acidify the samples to reduce the interference of sulfate. The pH is accurately controlled to give the most sensitive comparisons. Most natural waters can be analyzed by the modified procedure without resorting to correction curves. The fluoride content of waters containing less than 500 parts per million of sulfate, 500 parts per million of bicarbonate, and 1000 parts per million of chloride may be determined within a limit of about 0.1 part per million when a 100-ml. sample is used. |
| Genre: | Article |
| ProdID: | 70011062 |
| Citation Author: | Lamar, W. L.; Seegmiller, C. G. |
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| Citation End Page: | 902 |
| Citation Issue: | 12 |
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| Citation Language: | English |
| Citation Larger Work Title: | Industrial and Engineering Chemistry |
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| Citation Number Of Pages: | 2 |
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| Citation Search Results Text: | Determination of small quantities of fluoride in water: A modified zirconium-alizarin method; 1941; Article; Journal; Industrial and Engineering Chemistry; Lamar, W. L.; Seegmiller, C. G. |
| Citation Start Page: | 901 |
| Citation Volume: | 13 |
| Citation Year: | 1941 |
| Type: | citation/reference |
| Text: | Determination of small quantities of fluoride in water: A modified zirconium-alizarin method; 1941; Article; Journal; Industrial and Engineering Chemistry; Lamar, W. L.; Seegmiller, C. G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1941 00:00 -0600 |
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