该文利用多壁碳纳米管（MWCNTs）和聚（2-乙酰基-5-溴噻吩）复合纳米材料修饰电极，用于同时检测对苯二酚（HQ）、邻苯二酚（CC）和对甲苯酚（PC）。通过循环伏安法(CV)，示差脉冲伏安法(DPV)和透射电镜(TEM)表征了该复合纳米材料的电化学性能和表面形貌。结果表明该电极对HQ、CC和PC具有较高的灵敏度和选择性。DPV峰电流与HQ、CC和PC的浓度在1.0×10-5～8.0×10-4 mol/L,5.0×10-6～5.5×10-4 mol/L和5.0×10-6～7.5×10-4 mol/L范围内分别呈良好的线性关系，且检测限分别为3.0×10-6 mol/L，1.7×10-6 mol/L和2.0×10-6 mol/L。%Multi-walled carbon nanotubes (MWCNTs) and poly(2-acetyl-5-bromothiophene) were used to modify glassy carbon electrode for the simultaneous determination of hydroquinone (HQ), catechol (CC), and p-cresol (PC). The modified electrode was characterized by differential pulse voltammetric (DPV), cyclic voltammetry (CV) and transmission electron microscope (TEM). The modified electrode showed a high sensibility and selectivity to the determination of HQ、CC and PC with the linear ranges of 1.0×10-5~8.0×10-4 mol/L, 5.0×10-6~5.5×10-4 mol/L and 5.0 ×10-6~7.5 ×10-4 mol/L, respectively. The detection limits were 3.0 ×10-6 mol/L, 1.7 ×10-6 mol/L and 2.0 ×10-6 mol/L, respectively.
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