The results of a study of the dynamics of the excitation angle of a surface electromagnetic wave (SEW) at the interface between a silver/NaCl aqueous solution of concentrations 10⁻³, 10⁻⁴, 10⁻⁶ and 10⁻¹⁰ M are presented. It is shown that the rate of change in the excitation angle of SEW is proportional to the concentration of the solution up to a dilution of 10⁻¹⁰ M. The observed effect is explained by the formation of silver chloride on the surface of the silver film as a result of the interaction of solution ions with nanoscale clusters of the silver film. The proposed technique for measuring the dynamics of the excitation angle of SEW can be used for a comparative analysis of the concentrations of highly dilute solutions, as well as for studying the formation and dynamics of transition layers and physicochemical processes in the near-surface regions.

表面电磁波（SEW）的激励角的动力学的研究的浓度10的银/氯化钠水溶液之间的界面，结果^-3，10 ^-4，10 ^-6和10 ^-10  M的呈现。结果表明，SEW激发角的变化率与溶液的浓度成正比，直至稀释度为10 ^-10 M.观察到的效果是由于溶液离子与银膜的纳米级簇相互作用而在银膜表面形成氯化银而解释的。所提出的用于测量SEW的激发角的动力学的技术可以用于高度稀溶液浓度的比较分析，以及用于研究近表面区域中过渡层的形成和动力学以及理化过程。