还原氧化石墨烯/聚亚甲基蓝复合物修饰电极用于丙烯酰胺检测  

Reduced Graphene Oxide/Poly(Methylene Blue)Composite Modified Electrode for the Detection of Acrylamide

作　　者：周影[1] 李瑞春 王婷婷 双少敏[1] ZHOU Ying;LI Ruichun;WANG Tingting;SHUANG Shaomin(School of Chemistry and Chemical Engineering,Shanxi University,Taiyuan 030006,China)

机构地区：[1]山西大学化学化工学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2022年第3期773-782,共10页Journal of Shanxi University(Natural Science Edition)

基　　金：山西省高等学校科技创新项目(2019L0118);山西省回国留学人员科研项目(2021-012)。

摘　　要：丙烯酰胺作为食品热加工处理的产物,具有生殖毒性、神经毒性和致癌性。文章应用电化学工作站的三电极体系,通过同时进行氧化石墨烯的电化学还原和亚甲基蓝的氧化,在玻碳电极表面合成了还原氧化石墨烯/聚亚甲基蓝(RGO/PMB)复合物,构建了用于丙烯酰胺灵敏检测的电化学传感器。在最优的实验条件下,该传感器对丙烯酰胺的检测限可达1.67×10^(-9)mol/L,检测范围为5×10^(-9)mol/L~2.5×10^(-5)mol/L。实验结果表明该传感器具有良好的选择性、稳定性和重现性,并且可用于实际薯片样品中丙烯酰胺含量的测定。Acrylamide is a product of food heat processing,which is reproductively toxic,neurotoxic and carcinogenic.Here,using a three-electrode system of the electrochemical workstation,the electrochemical reduction of graphene oxide and the oxidation of methylene blue were carried out simultaneously on the surface of glassy carbon electrode.The reduced graphene oxide/poly(methylene blue)(RGO/PMB)complex was synthesized on the electrode surface and a sensitive electrochemical sensor for acrylamide was constructed.In the optimal case,the detection limit of the proposed sensor was up to 1.67×10^(-9)mol/L and the detection range wa s5×10^(-9)-2.5×10^(-5)mol/L.The results showed that the sensor had good selectivity,stability and reproducibility,and could be used for the determination of acrylamide in actual potato chip samples.

关 键 词：丙烯酰胺 电化学传感器 还原氧化石墨烯 聚亚甲基蓝 

分 类 号：O657.1[理学—分析化学]