Determination of alkali metals

G - Physics – 01 – N

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150/11, 150/26

G01N 33/84 (2006.01) G01N 31/22 (2006.01)

Patent

CA 1219795

DETERMINATION OF ALKALI METALS Abstract of the Disclosure A method for determining the alkali metal content of a liquid such as protein-containing liquids wherein a liquid containing alkali metal cation is contacted with a monocyclic crown ether capable of forming a complex with the alkali metal cation in a substantially inert solvent and an anionic dye, is disclosed. The alkali metal forms a complex with the ether and the dye in the solvent, the presence of which is a measure of the alkali metal content of the liquid.

461192

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