关键词: 极谱分析, 薄膜电极, 聚苯胺, 可逆波理论, 示差脉冲伏安法

A theor. equation describing the reversible wave in differential pulse voltammetry at polyaniline thin film-coated electrodes is derived in this paper. That is Di = abkQTPX(K,vDE,b,t,d) were a is the electron transfer coefficient, its value is 0.5 ~ 1, b = D/d2(D is the diffusion coefficient in film, d is the film thickness), k is the constant of experiment, QTP is the charge of polymerisation, X is the function of these parameters K, v, DE, b, t, d, and is calculated numerically. The equation is verified already and experimental results are in good agreement with the theor.

Key words: POLAROGRAPHIC ANALYSIS, THIN FILM ANODES, POLYANILINE