ZnO/CNT-COOHs based solid-state ECL sensor for tetracycline detection in fishpond water

被引：30
作者：
Shan, Xueling [1 ,2 ]
Pan, Yuting [1 ]
Dai, Fanzhuo [1 ]
Chen, Xiaohui [3 ]
Wang, Wenchang [1 ,2 ]
Chen, Zhidong [1 ,2 ]
机构：
[1] Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Sch Petrochem Engn, Changzhou 213164, Peoples R China
[2] Changzhou Univ, Adv Catalysis & Green Mfg Collaborat Innovat Ctr, Changzhou 213164, Peoples R China
[3] Changzhou Vocat Inst Engn, Sch Chem & Mat Engn, Changzhou 213164, Peoples R China
来源：
MICROCHEMICAL JOURNAL | 2020年 / 155卷
基金：
中国国家自然科学基金;
关键词：
ECL sensor; Tetracycline detection; Environment-friendly material; Flower-liked ZnO; CNT-COOHs; NITROGEN-DOPED GRAPHENE; ELECTROGENERATED CHEMILUMINESCENCE; ELECTROCHEMILUMINESCENCE; APTASENSOR; FILM; NANOCOMPOSITES; NANOPARTICLES; ANTIBIOTICS; PERFORMANCE; LUMINOL;
D O I：
10.1016/j.microc.2020.104708
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A sensitive electrochemiluminescence (ECL) sensor in solid-state for the detection of tetracycline (TET), based on carboxylated carbon nanotubes modified ZnO (CNT-COOHs/ZnO), was developed in this research. The ZnO, which worked as luminophore here, was an environment-friendly material. Resulted from its tremendously specific surface area, the loading amount of CNT-COOHs increased. The CNT-COOHs played a role of catalyzer to enhance the ECL intensity of CNT-COOHs/ZnO modified glass carbon electrode (GCE) in triethanolamine (TEOA) contained electrolyte. After adding TET in the solution, the ECL intensity significantly quenched. The.ECL intensity showed a good correlation to the concentration of TET in the range of 1.0 x 10(-8)-1.0 x 10(-4) M and the detection limit achieved to 6.7 x 10(-9) M within a response time of 1.0 min. Furthermore, the proposed CNT-COOHs/ZnO based ECL sensor was applied for the detection of TET in fishpond water and exhibited a good accuracy. We believe our system supplied a potential platform for the detection of TET in real world.
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页数：8
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