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Ingols et al., 1950 - Google Patents

Determination of Fluoride Ion with Ferric Thiocyanate

Ingols et al., 1950

Document ID
8062435818371111114
Author
Ingols R
Shaw E
Eberhardt W
Hildebrand J
Publication year
Publication venue
Analytical Chemistry

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Snippet

CONCLUSION It is evident that the lower the pH the more stable the solu-tion. Below a pH of 4.25 there is some tendency for the ethyl-enediamine tetraacetic acid to precipitate from the solution. A pH of 4.25 to 5 is recommended and is obtained when the analytical grade …
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    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
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