The cyclic voltammetric behaviors of Pt electrode modified with ferrocene derivative LB films were studied in K4Fe(CN)6 and ascorbic acid solns., resp. Cyclic voltammetric theory (model) of modified electrode was employed to obtain the experimental data using a computer fitting approach. Quant. agreement between experiment and theory was obtained. The coverage of LB films modified on Pt electrode under surface pressure of 20, 30, 40 nNm-1 was estimated and the mediation of charge transfer of modified LB films under different surface pressure was discussed.

Key words: CHEMICAL MODIFIED ELECTRODE, FERROCENE, CYCLOVOLTAMGRAPH, SURFACE COVERAGE, L-B MEMBRANE