RADIOTRACER STUDY OF METAL HEXACYANOMETALATE FILMS - SORPTION OF CA-2+ IONS INTO CUPRIC HEXACYANOFERRATE FILMS

Cupric hexacyanoferrate film was formed on a gold plated plastic foil forming the bottom and main electrode of a cell used for radiotracer sorption studies. The sorption of 45Ca labelled Ca2+ ions was studied under both dynamic (cyclic voltammetry) and potentiostatic conditions. It was found that a strict relationship exists between the amount of Ca2+ ions incorporated into the film during reduction and eliminated from the film during oxidation and the charge involved in these processes. The experimental results confirm the assumption that the radiotracer study of the sorption of cations could be a useful tool for the investigation metal hexacyanometalate films. © 1990.