New fluorescence detection method of tetracycline based on zirconium-based MOF(Metal-organic framework)
A fluorescence detection and tetracycline technology, applied in the field of chemical sensing, can solve the problems of chronic poisoning of microorganisms and fish, complex and expensive equipment, water environment imbalance, etc., and achieve low detection limit, convenient detection of tetracycline, and improved detection limit. Effect
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[0022] (1) In a 50mL reaction tube, ZrCl 4 (120.0 mg, 0.52 mmol), H 4 ETTC (60.0 mg, 0.072 mmol) and trifluoroacetic acid (0.8 mL) were sonicated in N,N-dimethylformamide (DMF, 8.0 mL); the mixture was heated in an oven at 120 °C for 48 hours to give Zirconium-based MOF particles. The synthesized product was washed thoroughly with DMF (15 mL) and acetone (15 mL), respectively, and finally dried at 65 °C for 12 hours to obtain the final product.
[0023] (2) Perform XRD test and SEM morphology analysis on the prepared zirconium-based MOF samples, such as figure 1 with figure 2 shown. The obtained zirconium-based MOF crystal has a porous coordination network framework structure, which is composed of rectangular ETTC planar ligand-connected Zr-O clusters, and has two kinds of one-dimensional channels (hexagonal channels (diameter 4.3 nm) and triangular channels (diameter 1.5 nm)).
[0024] (3) Analyze the fluorescence properties of the prepared zirconium-based MOF. Zircon...
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