中文摘要：

采用配位均匀沉淀法制备氢氧化铜纳米线,并制备了氢氧化铜-乙炔黑复合修饰碳糊电极。该修饰电极与裸碳糊电极相比,具有高的灵敏度、良好的稳定性和重现性。在优化条件下,采用微分脉冲伏安法测得壬基酚氧化峰电流与浓度的线性范围为7.50×10-8~1.75×10-5 mol/L,检测限为1.26×10-8 mol/L。该方法应用于环境水样和土壤样品中壬基酚的检测,加标回收率为98.8%~105.6%。

英文摘要：

A novel carbon paste electrode （CPE） has been constructed by composite modification of nanowires copper hydroxides and acetylene black （AB）. The surface topography of Cu （OH）2-AB/CPE was characterized by scanning electron microscope（SEM）, and the assay performances of nonyl phenol （NP） at Cu （OH）2-AB/CPE were evaluated. Results revealed that this electrode showed better electrocatalytic performance, higher sensitivity and more enduring stability towards NP determination than CPE. The results indicated that a diffusion-controlled process with 2 electrons and 2 protons transfer was occurred at Cu （OH）2-AB-CPE and the oxidation process for NP was completely irreversible. Under the optimized conditions, a sensitive differential pulse voltammetry was established for the detection of NP at Cu（OH）2-AB/CPE. The calibration curve was linear over NP concentrations in the range of 7.50×10-8-1.75×10-5 mol/L（R=0. 999） with a detection limit of 1.26×10-8 mol/L （S/ N=3）. The proposed method was applied in the determination of NP in real water and soil samples with good recoveries of 98.8%-105.6%.