分子印迹聚合物
微分脉冲伏安法
吸附
阿斯巴甜
电化学气体传感器
共晶体系
循环伏安法
电化学
化学
材料科学
色谱法
电极
化学工程
选择性
有机化学
物理化学
食品科学
合金
催化作用
工程类
作者
Ling Tan,Qing-Yao Li,Yanjun Li,Rongrong Ma,Jia-Yuan He,Zhuang‐Fei Jiang,Yang Lili,Chong‐Zhi Wang,Ling Luo,Qi‐Hui Zhang,Chun‐Su Yuan
出处
期刊:RSC Advances
[The Royal Society of Chemistry]
日期:2021-01-01
卷期号:11 (22): 13486-13496
被引量:7
摘要
In this work, an efficient and sensitive magnetic molecularly imprinted polymer with zein and deep eutectic solvents (ZDM-MIPs) was designed and synthesized to exclusively adsorb and detect aspartame (ASP). We used zein, together with deep eutectic solvents (DESs) and Fe3O4 as the cross-linker, functional monomer and support material, respectively. A magnetic glassy carbon electrode (MGCE) modified with ZDM-MIPs was used for selective recognition of ASP. The electrochemical response of the ZDM-MIPs-MGCE for quantification of ASP was evaluated with a portable electrochemical detection station with differential pulse voltammetry and cyclic voltammetry. The responses of ZDM-MIPs-MGCE signified a good linear relationship with ASP concentrations in the range of 0.1-50 μg mL-1. The sensor systems showed good accuracy and precision, with recovery percentages between 84% and 107%. These results suggested that the obtained ZDM-MIPs exhibited good adsorption performance for ASP in soft drinks, and this method could be used to determine ASP content in actual food samples.
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