The brine contains salts of alkali and alkaline earth metals.
The concentration of calcium, sodium, potassium and magnesium cations is ten thousand times that of lithium.
In the existing measurement methods, we encounter cationic interference for lithium, and on the other hand, it is very difficult to separate this valuable element in low concentrations with the presence of the above cations.
The Challenge: Build a correct measuring device without interference on ppb scale
(Except for ICP-OES device of Jena Analytical Company).
Also, an economic method of separation on a semi-industrial scale that has the necessary technical and economic justification.