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Determination of small quantities of fluoride in water: A modified zirconium-alizarin method

January 1, 1941

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.

Citation Information

Publication Year 1941
Title Determination of small quantities of fluoride in water: A modified zirconium-alizarin method
DOI
Authors W.L. Lamar, C.G. Seegmiller
Publication Type Article
Publication Subtype Journal Article
Series Title Industrial and Engineering Chemistry
Series Number
Index ID 70011062
Record Source USGS Publications Warehouse
USGS Organization