A novel electrochemical sensor based on three-dimensionally ordered macroporous TiO2 for the determination of Vanillin in food additives
作者单位：College of Chemistry and Materials Science Nanjing Normal University Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
会议名称：《中国化学会第十三届全国分析化学年会》
会议日期：2018年
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 09[农学] 070302[理学-分析化学] 0903[农学-农业资源与环境] 0703[理学-化学]
关 键 词：Vanillin 3DOM TiO2 modified electrode electrochemical sensor
摘 要：In this work,A three-dimensionally ordered macroporous (3DOM) TiO modified electrode was fabricated by the template method on the indium tin oxide (ITO) *** morphology and elelctrochemical properties of the modified electrode were characterized by SEM,CV,CC,LSV,EIS and *** the optimized condition,the oxidation peak current of VA was found to be linearly proportional to the concentration of VA in the range of 5×10～4×10mol L with a detection limit of 4.9×10 molL (S/N=3).In addition,the modified electrode was successfully used for the quantitative determination of VA in food samples with high sensitivity,rapid electrochemical response and low *** result is satisfactory.