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Metal–organic framework-based fluorescent sensing of tetracycline-type antibiotics applicable to environmental and food analysis

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Abstract

Antibiotics have been noted as an important class of emerging contaminants in the environment. Metal–organic frameworks (MOFs), which have been intensely investigated as a novel kind of sensing material, have been tentatively applied to the detection of antibiotics in recent years. In this work, a nanoscale MOF (In-sbdc) with a strong (quantum yield = 13%) and stable emission in water was synthesized. With its effective spectral overlap with tetracyclines, adsorption preconcentration and the usage of a masking agent, In-sbdc gave sensitive responses to a series of tetracycline antibiotics (tetracycline, chlorotetracycline and oxytetracycline) with detection limits of 0.28–0.30 μM, but another eight tested kinds of antibiotics did not cause a remarkable change in its emission (<10% of the response caused by an equal amount of tetracyclines). This MOF-based sensing system was successfully applied to tetracyclines detection in a series of actual water and food samples.

Graphical abstract: Metal–organic framework-based fluorescent sensing of tetracycline-type antibiotics applicable to environmental and food analysis

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Publication details

The article was received on 03 Oct 2018, accepted on 14 Jan 2019 and first published on 15 Jan 2019


Article type: Paper
DOI: 10.1039/C8AN01895B
Citation: Analyst, 2019, Advance Article

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    Metal–organic framework-based fluorescent sensing of tetracycline-type antibiotics applicable to environmental and food analysis

    Q. Liu, D. Ning, W. Li, X. Du, Q. Wang, Y. Li and W. Ruan, Analyst, 2019, Advance Article , DOI: 10.1039/C8AN01895B

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