纳米金/多壁碳纳米管修饰电极制备及其对对硝基苯酚的检测  

Preparation of nano-gold/MWCNT modified electrode for the detection of p-nitrophenol

作　　者：黄迪惠 黄小洲 陈锦阳 叶瑞洪 HUANG Di-hui;HUANG Xiao-zhou;CHEN Jin-yang;YE Rui-hong(School of Ocean Science and Biochemistry Engineering,Fuqing Branch of Fujian Normal vniversity,Fuqing,Fujian 350300,China;Key Laboratory of Measurement and Control System for Coastal Basin Environment,Fuqing Branch of Fujian Normal University,Fuqing,Fujian 350300,China;College of Life Sciences,Fujian Normal University,Fuzhou,Fujian 350117,China)

机构地区：[1]福建师范大学福清分校海洋与生化工程学院,福建福清350300 [2]福建师范大学福清分校近海流域环境测控治理福建省高校重点实验室,福建福清350300 [3]福建师范大学生命科学学院,福建福州350117

出　　处：《宁德师范学院学报（自然科学版）》2020年第1期1-8,共8页Journal of Ningde Normal University(Natural Science)

基　　金：福建省科技厅自然科学基金(2018J01675);福建省中青年教师教育科研项目(JA15567)。

摘　　要：用纳米金(AuNPs)和多壁碳纳米管(MWCNTs)复合材料修饰电极,用循环伏安法研究了对硝基苯酚(PNP)在修饰电极上的电化学行为.研究表明,滴涂三层复合材料为最佳修饰层数,扫描速度在100 mV/s的条件下,对浓度为4.0×10^-5~4.0×10^-4 mol/L PNP进行检测分析,结果呈线性关系,其回归方程为I=2.92727+0.01964c(R^2=0.9973),检出限为1.6×10^-6 mol/L.测定稳定性(RSD=3.8%)和重现性(RSD=4.0%)良好,加标回收率在96.8%~104.4%之间.结果表明,纳米金/多壁碳纳米管复合材料修饰电极对PNP检测分析具有良好的效果.The electrode was modified with nano-gold(AuNPs)and multi-walled carbon nanotube(MWCNTs)composites,and the electrochemical behavior of p-nitrophenol(PNP)on the modified electrode was studied by cyclic voltammetry.The study showed that the three-layer composite material was the optimal number of modified layers.The scanning speed was 100 mV/s and the concentration of p-nitrophenol was 4.0×10^-5-4.0×10^-4 mol/L.The regression equation is I=2.92727+0.01964c correlation coefficient(R^2=0.9973),and the detection limit is 1.6×10^-6mol/L.The determination stability(RSD=3.8%)and reproducibility(RSD=4.0%)are good,and the recoveries of spiked standards are between 96.8%-104.4%.The results show that the detection of MWCNTs/AuNPs composites has a good effect on nitrophenol.

关 键 词：对硝基苯酚 碳纳米管 纳米金 循环伏安法 

分 类 号：O657.1[理学—分析化学]