Filmes de metal-hexacianoferrato: uma ferramenta em química analítica

Abstract

Recebido em 26/11/99; aceito em 11/12/00 METAL-HEXACYANOFERRATE FILMS: A TOOL IN ANALYTICAL CHEMISTRY. Chemically modified electrodes based on hexacyanometalate films are presented as a tool in analytical chemistry. Use of amperometric sensors and/or biosensors based on the metal-hexacyanoferrate films is a tendency. This article reviews some applications of these films for analytical determination of both inorganic (e.g. As 3+ , S 2 O 3 2-) and organic (e.g. cysteine, hydrazine, ascorbic acid, gluthatione, glucose, etc.) compounds.