基于石墨烯/壳聚糖修饰电极的免疫传感器检测噻虫啉  

An Immunosensor Based on Graphene/Chitosan Modified Electrode for Thiacloprid Detection

作　　者：赵国政 张芹[2] 解廷月[3] ZHAO Guo-zheng;ZHANG Qin;XIE Ting-yue(Modern College of Humanities and Sciences,Shanxi Normal University,Linfen Shanxi,041000;School of Chemistry and Materials Science,Nanjing Normal University,Nanjing Jiangsu,210023;School of Physics and Electronic Science,Shanxi Datong University,Datong Shanxi,037009)

机构地区：[1]山西师范大学现代文理学院,山西临汾041000 [2]南京师范大学化学与材料科学学院,江苏南京210023 [3]山西大同大学物理与电子科学学院,山西大同037009

出　　处：《山西大同大学学报（自然科学版）》2021年第5期1-3,9,共4页Journal of Shanxi Datong University(Natural Science Edition)

基　　金：山西师范大学现代文理学院基础研究重点项目[2020JCYJ02];山西省高等学校科技成果转化培育项目[2020CG032]。

摘　　要：研制了石墨烯/壳聚糖/噻虫啉电化学免疫传感器。运用循环伏安法对修饰过程中电极表面的电化学性质进行了研究。通过间接竞争法检测了杀虫剂噻虫啉,最低检出限为0.4 mg/L,线性范围为500~6000 mg/L。石墨烯/壳聚糖/噻虫啉电化学免疫传感器展示了好的稳定性,并对香蕉和西红柿实际样品进行测定,回收率范围为93.2%~103.9%。An electrochemical immunosensor based on graphene/chitosan/thiacloprid modified electrode was developed.The electrochemical properties of the modified electrode were studied by cyclic voltammetry.Insecticide thiacloprid was detected by indirect competitive method.The lowest detection limit was 0.4 mg/L,and the linear range was 500~6000 mg/L.The graphene/chitosan/thiacloprid immunosensor has good repeatability and stability.The samples of banana,and tomato were determined,and the recoveries ranged from 93.2%to 103.9%.

关 键 词：石墨烯 壳聚糖 免疫传感器 检测 噻虫啉 

分 类 号：TS202.3[轻工技术与工程—食品科学]