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A Cu(II)-anchored unzipped covalent triazine framework with peroxidase-mimicking properties for molecular imprinting-based electrochemiluminescent detection of sulfaquinoxaline

文献类型： 外文期刊

作者： Ma, Xionghui 1 ; Li, Shuhuai 1 ; Pang, Chaohai 1 ; Xiong, Yuhao 3 ; Li, Jianping 4 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Anal & Test Ctr, Haikou 571101, Hainan, Peoples R China

2.Minist Agr, Lab Qual & Safety Risk Assessment Trop Prod Haiko, Haikou 571101, Hainan, Peoples R China

3.Hezhou Univ, Coll Food & Bioengn, Hezhou 542899, Peoples R China

4.Guilin Univ Technol, Coll Chem & Bioengn, Guangxi Key Lab Electrochem & Magnetochem Funct M, Guilin 541004, Peoples R China

关键词： Unzipping; Peroxide mimic; Post-anchoring; Non-precious metal nanomaterial; 2D sheet nanomaterial; Veterinary drug; Untra-trace detection; Electrochemical sensor

期刊名称：MICROCHIMICA ACTA （ 影响因子：5.833； 五年影响因子：5.357 ）

ISSN： 0026-3672

年卷期： 2018 年 185 卷 12 期

页码：

收录情况： SCI

摘要： The authors describe a method of electrochemiluminescent quantitation of the antibioticsulfaquinoxaline (SQX). It relies on the use of a molecularly imprinted polymer and a Cu(II)-anchored unzipped covalent triazine framework (UnZ-CCTF) with excellent dispersibility, electrical conductivity, and peroxidaze-like activity. The framework wasprepared by unzipping a covalent triazine framework under retention of basic triazine units. It was morphologically and structurally characterized by a range of instrumental techniques. The excellent peroxidase-mimicking effect of UnZ-CCTF on the electrochemiluminescence of the luminol/H2O2 system was exploited to design an ultrasensitive SQX assay with a 1.0-20 pM detection rangeand a detection limit of 0.76 pM (at 3/m). The technique was used for SQX quantitation in spiked milk samples, achieving recoveries of 94.0-104.8%.

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