文献类型：期刊文献

英文题名：Application of an Astragalus biochar molecularly imprinted electrochemical sensor for highly sensitive sensing and detection of triazophos in tea

作者：Cheng, Dongdong[1];Li, Jia[1];Wang, Xin[1,2];Li, Yi[1];Jin, Pen[1];Lin, Jun[1];Li, Meng[1];Li, Ruojia[1];Dai, Yongquan[1];Qin, Weicheng[1];Jiang, Binlian[1];Wang, Zegen[1];Lu, Lina[1];Yang, Xiaojun[1]

第一作者：Cheng, Dongdong

通信作者：Li, J[1];Wang, X[1];Wang, X[2]

机构：[1]Northwest Minzu Univ, Gansu Prov Engn Res Ctr Biomass Funct Composite Ma, Key Lab Utilizat Environm Friendly,Key Lab Enviro, Chem Engn Inst,Gansu Prov Res Ctr Basic Sci Surfa, Lanzhou 730000, Peoples R China;[2]Gansu Univ Chinese Med, Coll Pharm, Lanzhou 730000, Peoples R China

第一机构：Northwest Minzu Univ, Gansu Prov Engn Res Ctr Biomass Funct Composite Ma, Key Lab Utilizat Environm Friendly,Key Lab Enviro, Chem Engn Inst,Gansu Prov Res Ctr Basic Sci Surfa, Lanzhou 730000, Peoples R China

通信机构：[1]corresponding author), Northwest Minzu Univ, Gansu Prov Engn Res Ctr Biomass Funct Composite Ma, Key Lab Utilizat Environm Friendly,Key Lab Enviro, Chem Engn Inst,Gansu Prov Res Ctr Basic Sci Surfa, Lanzhou 730000, Peoples R China;[2]corresponding author), Gansu Univ Chinese Med, Coll Pharm, Lanzhou 730000, Peoples R China.|[1073501e14fb35863569f]甘肃中医药大学药学院（西北中藏药协同创新中心办公室）;[10735]甘肃中医药大学;

年份：2026

外文期刊名：ANALYST

收录：;EI(收录号：20261620543768);Scopus(收录号：2-s2.0-105036118550);WOS:【SCI-EXPANDED(收录号:WOS:001743799500001)】；

基金：The authors gratefully acknowledge the Fundamental Research Funds for the Central Universities (Grant No. 31920250016 and 31920240125-06), the National Natural Science Foundation of China (No. 82460820), the Key Research and Development Program of Gansu Province (No. 25YFFA032), the Gansu Province Pharmaceutical Supervision Scientific Research Project (No. 2025GSMPA072), the Lanzhou City Youth Science and Technology Talent Innovation Project (No. 2025-QN-196), and the General Program of the Central Universities (No. 31920260090).

语种：英文

外文关键词：Chemical detection - Electrochemical impedance spectroscopy - Electrochemical sensors - Glass membrane electrodes - Solvents - Trace analysis

摘要：In this study, a novel electrochemical sensing interface was developed for the detection of triazophos (TAP) in tea. Notably, a deep eutectic solvent (DES) was innovatively employed as the template eluting solvent for molecularly imprinted polymers (MIPs). Compared with common template eluting solvents, DES, composed of choline chloride and urea, yielded excellent elution effects. Diphenyl phosphoryl chloride (DCP) was employed as the dummy template molecule, and methacrylic acid (MAA) served as the functional monomer. Subsequently, the obtained MIPs combined with Astragalus biochar were deposited on a glassy carbon electrode (GCE) via the layer-by-layer self-assembly method to improve the performance of electrical sensors. The electrochemical behavior of the MIP/BC@GCE was assessed via cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV). The sensor exhibited outstanding sensitivity and selectivity towards TAP, with a broad linear range from 1.0 & times; 10-12 to 1.0 & times; 10-8 M, a low detection limit of 3.3 & times; 10-13 M, and a recovery rate ranging from 85.0% to 99.1%, demonstrating reliable reproducibility and stability. The transformation of plant waste into biochar for utilization in composite electrode-based sensing may hold a broad application prospect for trace analysis.