Laser diagnostics of the composition and salinity of mineralized waters

We study the possibilities of the method of laser diagnostics of the composition of multicomponent electrolytic solutions. In our experiments, we used a four-mirror phase-retarded interferometer operating at three wavelengths from the visible range. For three-component solutions of chloride salts, we determined partial sensitivities of the measuring system to changes in the concentrations of each electrolyte for each of the indicated wavelengths.