基于ZIF-8电化学传感器构建及用于检测饮料中新橙皮苷二氢查耳酮  

Construction of ZIF-8 based electrochemical sensor for the detection of neohesperidin dihydrochalcone in beverage

作　　者：张亮 徐俊晖[1] 王亚珍[1,2] ZHANG Liang;XU Junhui;WANG Yazhen(School of Optoelectronic Materials and Technology,Jianghan University,Wuhan 430056,China;Hubei Enterprise-College Joint Innovation Center of Healthy Sugar Substitute Product,Wuhan 430056,China)

机构地区：[1]江汉大学光电材料与技术学院,武汉430056 [2]湖北省健康代糖产品企校联合创新中心,武汉430056

出　　处：《分析试验室》2024年第1期91-97,共7页Chinese Journal of Analysis Laboratory

基　　金：武汉市教育局市属高校产学研项目(CXY2020001)资助。

摘　　要：采用电泳沉积法,成功在玻碳电极(GCE)表面制备了一层ZIF-8材料薄膜,再在其表面滴涂一层全氟化树脂溶液(Nafion),形成ZIF-8/Nafion复合膜,用于构建检测高倍甜味剂新橙皮苷二氢查耳酮(NHDC)的电化学传感器。利用电化学交流阻抗(EIS)技术对该传感器进行表征,采用循环伏安法(CV)研究NHDC在ZIF-8/Nafion电极表面的电化学行为,并优化实验条件。NHDC在ZIF-8/Nafion膜上有灵敏的响应。采用差分脉冲伏安法(DPV)建立了定量检测NHDC的方法,方法线性范围为0.16~160μmol/L,检出限为56 nmol/L。该方法检测饮料中NHDC的加标回收率范围为99.0%~101.3%。The electrophoretic deposition method was used to prepare ZIF-8 film on the surface of glassy carbon electrode(GCE),then an amount of perfluorinated resin solution(Nafion) was dropped on the surface of ZIF-8modified GCE,and thus a ZIF-8/Nafion composite film modified electrode(ZIF-8/Nafion GCE) was obtained and an electrochemical sensor for the high concentration of sweetener neohesperidin dihydrochalcone(NHDC) was constructed.The sensor was electrochemically characterized by electrochemical impedance spectroscopy(EIS),the electrochemical behavior of NHDC on the surface of the ZIF-8/Nafion GCE electrode was investigated,and the experimental conditions were optimized by using the cyclic voltammetry(CV) method.The sensor evinced a sensitive response to NHDC on the ZIF-8/Nafion GCE electrode.Differential pulse voltammetry(DPV) method was used to establish a quantitative detection method for NHDC with a linear range of 0.16-160 μmol/L and a detection limit of 56 nmol/L.The spiked recoveries of this method for the detection of NHDC in beverages were 99.0%-101.3%.

关 键 词：ZIF-8 电泳沉积法 新橙皮苷二氢查耳酮(NHDC) 电化学传感器 

分 类 号：TS207.3[轻工技术与工程—食品科学] O657.1[轻工技术与工程—食品科学与工程]