Solid-phase reactions at the interface between LaF3 (Eu2+) monocrystal
(the sensitive membrane of a fluoride-selective electrode) and a meta
l (Ag, Sn, Bi, Sb, Ta, Nb, Ti) are studied by inversion and convention
al voltammetry. It is found that the current peak of the cathodic curv
es for decomposition of anodically generated compounds depends on the
amount of electricity, which is consumed by formation of the solid pha
se during anodic polarization of the LaF3/Me interface. It is determin
ed that the peak potential of cathodic curves is related to the metal
nature. These regularities may be applied to develop a voltammetric me
thod with the use of fluoride-selective electrode with nonpolarizable
reference system for analysis for metals in solid phases.