中空ZnSn（OH）6/Ti3C2 MXene纳米复合材料电化学传感器的构建及检测呋喃西林  

Electrochemical Determination of Nitrofurazone by Electrochemical Sensor Base on Hollow ZnSn（OH）6/Ti3C2 MXene Nanocomposite

作　　者：姚雅娴 徐力萍 赵梦呓 甘甜 YAO Yaxian;XU Liping;ZHAO Mengyi;GAN Tian(Key Laboratory of Refrigeration and Conditioning Aquatic Products Processing,Ministry of Agriculture and Rural Affairs,Xiamen 361022,China;College of Chemistry and Chemical Engineering,Xingyang Normal University,Xingyang 464000,China;Fujian Anjoyfood Share Co.Ltd.,Xiamen 361022,China)

机构地区：[1]农业农村部冷冻调理水产品加工重点实验室,福建厦门361026 [2]信阳师范学院化学化工学院,河南信阳464000 [3]福建安井食品股份有限公司,福建厦门361026

出　　处：《信阳师范学院学报（自然科学版）》2019年第4期604-610,共7页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(61201091);农业农村部冷冻调理水产品加工重点实验室开放课题(KLRCAPP2018-10)

摘　　要：通过一步水热法制备中空ZnSn(OH)6微球,将其与二维Ti3 C2 MXene纳米片复合后获得ZnSn(OH)6/Ti3 C2 MXene纳米复合材料,并由此构建了新型的电化学传感器.采用循环伏安法研究了呋喃西林在该传感器上的不可逆氧化峰.其伏安过程为受吸附控制的过程,氧化反应电荷转移数为2.利用微分脉冲伏安法对呋喃西林进行定量分析,结果表明,由于ZnSn(OH)6微球和二维Ti3 C2 MXene的协同作用,该传感器对呋喃西林的电化学氧化具有显著催化作用.呋喃西林的浓度在0.5~70μmol/L范围内与其氧化峰电流有良好的线性关系,检出限为0.16μmol/L(RSN=3).该传感器对呋喃西林的测定具有良好的重现性,相对标准偏差(RSD)(n=10)仅3.4%.将该传感平台成功用于动物源食品的分析,回收率在92.0%-107%之间.The ZnSn(OH)6 microspheres were prepared by one-step hydrothermal method,which were compounded with two-dimensional Ti3 C2 MXene nanosheets to obtain ZnSn(OH)6/Ti3 C2 MXene nanocomposite,and a novel electrochemical sensor was fabricated based on this material.The irreversible oxidation peak of nitrofurazone was firstly studied on this sensor by using cyclic voltammetry.The voltammetric process of nitrofurazone was adsorption-controlled and the electron transfer number of this oxidation reaction was 2.The differential pulse voltammetry was used for the quantitative analysis of nitrofurazone,and the results showed that this sensor had remarkable catalytic effect for the electrochemical oxidation of nitrofurazone owing to the synergistic effect of ZnSn(OH)6 microspheres and two-dimensional Ti3 C2 MXene.The concentration of nitrofurazone had good linear relationship with its oxidation peak current in the range of 0.5~70μmol/L.The detection limit was 0.16μmol/L(R SN=3).The sensor displayed excellent repeatability for the detection of nitrofurazone,exhibiting a relative standard derivation(RSD)(n=10)of 3.4%.This sensing platform was applied to the analysis of animal-derived foods with the recovery ranging between 92.0%and 107%.

关 键 词：ZnSn(OH)6 Ti3 C2 MXene 呋喃西林 电化学氧化 食品分析 

分 类 号：O657.15[理学—分析化学]