Abstract
Tetracycline (Tc), a widely used antibiotic, is one of the major pollutants in water. Herein, glutathione (GSH)-protected Au nanoclusters (GSH-AuNCs) were prepared to detect Tc. The fluorescence quenching ratio of GSH-AuNCs shows an excellent linear response against tetracycline in the concentration range of 50 μg/L–50 mg/L with the detection limit of 5.31 μg/L. For the test paper prepared by GSH-AuNCs, 1 mg/L Tc caused a significant difference that could be recognized by the naked eye. The method exhibited good selectivity and excellent recovery when applied to a tap water sample. The method has the potential for Tc detection in real samples.
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This work was supported by the National Key R&D Program of China (2016YFC0401104). HIT Environment and Ecology Innovation Special Funds (HSCJ201617), and the National Natural Science Foundation of China (Grant Nos. 21773050 and 21528501).
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Liu, D., Pan, X., Mu, W. et al. Detection of Tetracycline in Water Using Glutathione-protected Fluorescent Gold Nanoclusters. ANAL. SCI. 35, 367–370 (2019). https://doi.org/10.2116/analsci.18P392
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DOI: https://doi.org/10.2116/analsci.18P392