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Li C, Zhu L, Yang W, He X, Zhao S, Zhang X, Tang W, Wang J, Yue T, Li Z. Amino-Functionalized Al-MOF for Fluorescent Detection of Tetracyclines in Milk. J Agric Food Chem 2019; 67:1277-1283. [PMID: 30640455 DOI: 10.1021/acs.jafc.8b06253] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A fluorescent method for detection of tetracyclines (TCs) in milk was developed by using the NH2-MIL-53(Al) nanosensor synthesized via a one-pot hydrothermal method. The nanosensor had a crystalline nanoplates structure with rich groups of -NH2 and -COOH. The -NH2/-COOH of NH2-MIL-53(Al) reacted with the -CO-/-OH of TCs to form a complex. The electron of -NH2/-COOH from the NH2-BDC ligand transferred to the -CO-/-OH of TCs. -NH2 of the NH2-MIL-53(Al) interacted with the -CO-/-OH of TCs by hydrogen bonding. The quenching efficiency of the inner filter effect (IFE) was calculated to contribute 57-89%. The synergistic effect of photoinduced electron transfer (PET) and IFE account for fluorescence quenching. TCs were quantitatively detected in milk samples with recoveries of 85.15-112.13%; the results were in great accordance with high-performance liquid chromatography (HPLC) ( P > 0.05), confirming the NH2-MIL-53(Al) nanosensor has potential applicability for the detection of TCs in food matrix.
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Affiliation(s)
- Chunhua Li
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Li Zhu
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Weixia Yang
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Xie He
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Sheliang Zhao
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Xiaoshuo Zhang
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Wenzhi Tang
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Jianlong Wang
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Tianli Yue
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture , Yangling , Shaanxi 712100 , China
- National Engineering Research Center of Agriculture Integration Test (Yangling) , Yangling , Shaanxi 712100 , China
| | - Zhonghong Li
- College of Food Science and Engineering , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture , Yangling , Shaanxi 712100 , China
- National Engineering Research Center of Agriculture Integration Test (Yangling) , Yangling , Shaanxi 712100 , China
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