Method for detecting nitrofuran antibiotics or quinolone antibiotics in drinking water

A nitrofuran and quinolone technology, applied in measurement devices, instruments, fluorescence/phosphorescence, etc., can solve the problems of unstable excitation wavelength dependence, cumbersome processing, and high operating costs

Active Publication Date: 2019-04-09
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems that the existing lanthanide metal-organic frameworks are unstable in dependence on the excitation wavelength, and the existing methods for determining antibiotics require professional instruments, the pretreatment is cumbersome, and the operation cost is high, the present invention provides a method for detecting drinking Method for nitrofuran antibiotics or quinolone antibiotics in water

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  • Method for detecting nitrofuran antibiotics or quinolone antibiotics in drinking water
  • Method for detecting nitrofuran antibiotics or quinolone antibiotics in drinking water
  • Method for detecting nitrofuran antibiotics or quinolone antibiotics in drinking water

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specific Embodiment approach 1

[0058] Specific embodiment one: a method for detecting nitrofuran antibiotics or quinolone antibiotics in drinking water in this embodiment is carried out according to the following steps:

[0059] 1. Preparation of Tb-dcpcpt crystals:

[0060] ①, Tb(NO 3 ) 3 ·6H 2 O, 3-(3,5-dicarboxyphenyl)-5-(4-carboxyphenyl)-1-hydrogen-1,2,4-triazole, N,N'-dimethylformamide and h 2 O mixed to obtain a mixture, the mixture is placed in a high-temperature reactor, under the condition of a temperature of 150°C to 200°C, sealed for 24h to 72h for solvothermal reaction, and a crystal sample is obtained;

[0061] The 3-(3,5-dicarboxyphenyl)-5-(4-carboxyphenyl)-1-hydrogen-1,2,4-triazole and Tb(NO 3 ) 3 ·6H 2 The molar ratio of O is 1:(0.5~2); the 3-(3,5-dicarboxyphenyl)-5-(4-carboxyphenyl)-1-hydrogen-1,2,4-tri The molar ratio of nitrogen azole to N,N'-dimethylformamide is 0.1mmol:(5-10)mL; the N,N'-dimethylformamide and H 2 The volume ratio of O is 1:(0.1~2);

[0062]②. Wash the crystal ...

specific Embodiment approach 2

[0077] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: 3-(3,5-dicarboxyphenyl)-5-(4-carboxyphenyl)-1-hydrogen described in step ① -1,2,4-Triazole and Tb(NO 3 ) 3 ·6H 2 The molar ratio of O is 1:(0.5~1). Others are the same as in the first embodiment.

specific Embodiment approach 3

[0078] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: 3-(3,5-dicarboxyphenyl)-5-(4-carboxyphenyl) described in step 1. -The volume ratio of the mole of 1-hydrogen-1,2,4-triazole to N,N'-dimethylformamide is 0.1mmol:(8~10)mL. Others are the same as those in the first or second embodiment.

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Abstract

The invention discloses a method for detecting nitrofuran antibiotics or quinolone antibiotics in drinking water, and relates to methods for detecting the antibiotics in the drinking water. An existing lanthanide series metal-organic framework has instability of dependence on excitation wavelength; and an existing antibiotic measuring method has the problems that a professional instrument is needed, the pretreatment is tedious, and the operation cost is high. The detection method comprises the following steps of 1, preparing Tb-dcpcpt crystals; 2, preparing an RhB@Tb-dcpcpt composite material;3, preparing an RhB@Tb-dcpcpt dispersion liquid; and 4, carrying out fluorescence detection. The method is used for detecting the nitrofuran antibiotics or the quinolone antibiotics in the drinking water.

Description

technical field [0001] The present invention relates to a method for detecting antibiotics in drinking water. Background technique [0002] Lanthanide metal-organic frameworks (Ln-MOFs) are crystalline organic / inorganic hybrid materials with characteristic luminescent properties, which are self-assembled by multidentate bonds and inorganic nodes of rare earth ions through coordination bonds. In Ln-MOFs, multiple emission properties can be easily obtained by modulating the energy transfer of ligands to lanthanide ions (antenna effect), thus providing a sensitive platform for Ln-MOFs in terms of emission color and intensity. On the other hand, the sensitivity of the coordination environment leads to the instability of the luminescence of Ln-MOFs. Taking advantage of its instability, Ln-MOFs can be used as sensors of environmental factors such as temperature, pH, solvent effect, etc., which have been widely reported and used as sensitive thermometers, pH indicators, and solven...

Claims

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Application Information

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IPC IPC(8): G01N21/64
CPCG01N21/643G01N2021/6432
Inventor 李玉鑫于明珂李光明赵丽娜
Owner HEILONGJIANG UNIV
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