中文摘要：

藉金硫键将二苯基硫脲组装在金电极上，形成二苯基硫脲自组装膜电极．利用循环伏安法（CV）和微分脉冲伏安法（DPV），考察氧化还原指示剂在自组装膜上的电子传递过程，并运用离子通道理论探讨膜电极与醋酸根阴离子的作用机理．实验结果表明，二苯基硫脲自组装膜电极在1．0mol·L^-1，V（氯化钾）：V（乙氰）为3：2的混合底液中，随着加入醋酸根阴离子阴离子的增加，指示剂的氧化还原峰峰最流增大，峰形查逆性变好，且DPV峰电流与醋酸根阴离子浓度在0～0．07mol·L^-1范围内呈现线性关系．

英文摘要：

Diphenylthiourea were assembled onto the gold electrode surface with Au-S bond to form a diphenylthiourea self-assembled monolayers （SAMs） Au electrode. The electron transfer process of the oxidoreduction-indicator had been studied by cyclic voltammetry （CV） and differential pulse voltammetry （DPV） methods and the interaction mechanisms of the self-assembled monolayer were discussed. Results showed that the curve shape of oxidation-reduction indicator was improved and the current increasing with the more adding of AC^- in 1. 0 mol · L^-1 KCl/CH3CN （volume ratio=3 ： 2） mixed solution. The linear relationship of the DPV currents and the concentrations means the SAMs electrode can be used in anion electrochemical recognition.