期刊
FOOD CHEMISTRY
卷 297, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2019.124969
关键词
Tetracycline; Molybdenum disulfide nanoplates; Fluorescence quenching; Food samples
资金
- Fundamental Research Funds for the Northwest AF University [Z111021601]
The wide use of tetracyclines (TCs) for prevention and therapy of animal diseases may result in excessive residues in animal products, which could pose serious risks to human health. A novel molybdenum disulfide nanoplates (MoS2 NPs)-based fluorescent sensor for tetracycline (TET) is reported. The MoS2 NPs, synthesized via a facile bottom-up hydrothermal route, showed blue fluorescence at 430 nm in aqueous solution. Interestingly, its fluorescence was quenched significantly upon addition of TET, which is mainly due to a combination of the inner filter effect and electron transfer. Thus, the MoS2 NPs based fluorescence sensor was delineated for the detection of TET. The methodology here presented showed a low detection limit of 0.032 mu M and satisfied recoveries from 88.46% to 108.62% in spiked milk, milk powder and bovine muscle samples.
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