Abstract
The application of high-resolution IR thermography for qualitative and quantitative determination of impurity concentrations in aqueous solutions is considered. Especially efficient turned out to be comparative analysis and analysis of contaminations: a film arises on the water surface in the presence of impurities, which can be seen well on an IR imager because of the difference in the surface temperatures and structures of convective vortices. It should be especially noted that the method makes it possible to determine low concentrations of impurities of neutral molecules, a case where no changes in the solution conductivity can be recorded using standard conductometric measurements. The problems related to the film simulation and influence of low-concentration impurities on the surface and volume properties of solution are considered.
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Translated by Yu. Sin’kov
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Uvarov, A.V., Vinnichenko, N.A., Plaksina, Y.Y. et al. Application of High-Resolution IR Thermography to Study the Surface of Aqueous Solutions. Phys. Wave Phen. 28, 150–153 (2020). https://doi.org/10.3103/S1541308X20020181
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DOI: https://doi.org/10.3103/S1541308X20020181