检出限
碳纳米管
多菌灵
电化学气体传感器
电化学
再现性
纳米技术
材料科学
环糊精
化学
色谱法
杀菌剂
电极
植物
生物
物理化学
作者
Runqiang Liu,Bo Li,Fang Li,Volodymyr Dubovyk,Yuqi Chang,Dongdong Li,Kunjie Ding,Qiwen Ran,Guifang Wang,Hongyuan Zhao
出处
期刊:Food Chemistry
[Elsevier]
日期:2022-08-01
卷期号:384: 132573-132573
被引量:46
标识
DOI:10.1016/j.foodchem.2022.132573
摘要
Carbendazim (CBZ) abuse always causes the over-standard of pesticide residues in agricultural products, which has adverse effects on human health. Herein, a novel electrochemical sensor was firstly fabricated based on the β-cyclodextrin (β-CD) functionalized carbon nanosheets@carbon nanotubes (CNS@CNT) for the CBZ determination. CNS@CNT combined large surface area of CNS and excellent electrical conductivity of CNT, which significantly enhanced the electrocatalytic performance. Moreover, β-CD possessed excellent host-gest supramolecular recognition ability, which could improve the selective recognition and enrichment capability of CBZ. Thanks to the synergistic interaction of CNS@CNT and β-CD, the β-CD/CNS@CNT/GCE sensor exhibited a low limit of detection of 9.4 nM in the linear CBZ concentration range of 0.03-30 μM. The fabricated sensor presented favorable stability, high sensitivity (30.86 μA μM-1 cm-2), and reliable reproducibility (RSD = 3.6%). Especially, the β-CD/CNS@CNT/GCE sensor could show pretty practical feasibility for the detection of CBZ in apple juice with recoveries of 97.1%-99.4%.
科研通智能强力驱动
Strongly Powered by AbleSci AI