  A possibility for the observation of so-called structure resonances (SR) in
electrolytes arising due to relative motion of the cluster charged nucleus and
its solvation shell is demonstrated. The discussed method considers the
resonant contribution of the SR to the frequency dependence of the reflection
(transmission) coefficient of the electromagnetic wave interacting with the
free electrolyte surface. Of special interest is the observation of SR for
multiply charged particles in electrolyte providing direct information on the
charge of single cluster. Also important are other not so prominent details of
the wave interaction with mobile charged clusters in electrolyte related to the
formation and complicated nature of the frequency dependence of the charged
cluster associated mass.
