分析化学2016，Vol.44Issue(12)：1834-1839,6.DOI:10.11895/j.issn.0253-3820.160366
3D石墨烯修饰的猛杀威分子印迹电化学传感器的制备
Preparation of Promecarb Electrochemical Sensor Based on 3 D-Graphene and Molecularly Imprinted Polymer
摘要
Abstract
A sensitive electrochemical sensor for promecarb was prepared based on molecularly imprinted strategy by thermal polymerization. The molecularly imprinted polymers ( MIP ) were synthesized by using promecarb as template molecule, acrylamide ( AM) as functional monomer, ethylene glycol acrylate, maleic rosin ester (EGMRA) as a cross-linking, homemaking 3D graphene as sensitizing materials to modify glassy carbon electrode surface, and synthesize the promecarb molecular imprinting electrochemical sensor. 3D graphene was characterized by scanning electron microscopy ( SEM) . The properties of the sensor were tested via cyclic voltammetry ( CV ) , differential pulse voltammetry ( DPV ) and electrochemical impedance spectroscopy ( EIS ) . The results showed that promecarb concentration in the range of 8 . 0 í10-8 -8. 0í10-6 mol/L had a good linear relationship (linear correlation coefficient R=0. 9954) with current, and the detection limit was 7 . 3í10-8 mol/L ( S/N=3 ) . The imprinted factorβof promecarb molecularly imprinted sensitive film was 3. 88, the selection factorαwas far greater than 1 compared to the three structural analogs. The imprinted sensor was successfully used to determine promecarb in lettuce samples with recoveries ranging from 96. 7% to 98. 7% by using standard addition method.关键词
猛杀威/三维石墨烯/分子印迹电化学传感器Key words
Promecarb/Molecular imprinted electrochemical sensor/3 D-graphene引用本文复制引用
陈晓,谭学才,严军,吴叶宇,李晓宇,张慧,陈全友,冯德芬,金应鑫..3D石墨烯修饰的猛杀威分子印迹电化学传感器的制备[J].分析化学,2016,44(12):1834-1839,6.基金项目
本文系国家自然科学基金(Nos.21365004,21065001)、广西自然科学基金重点项目(No.2013GXNSFDA019006)、广西教育厅科研基金重点项目(No.2013ZD019)、广西高等学校高水平创新团队及卓越学者资助计划(桂教人[2014]7号)资助。 （Nos.21365004,21065001）
