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Zinc coordination polymer as well as synthesis method and application thereof in kanamycin detection

A technology of zinc coordination polymer and synthesis method, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of less research on electrode modification materials, poor water stability, etc., and achieve high yield, good stability, and simple equipment Effect

Active Publication Date: 2021-11-23
TIANJIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the generally poor water stability of most coordination polymers, there is little research on their use as electrode modification materials.

Method used

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  • Zinc coordination polymer as well as synthesis method and application thereof in kanamycin detection
  • Zinc coordination polymer as well as synthesis method and application thereof in kanamycin detection
  • Zinc coordination polymer as well as synthesis method and application thereof in kanamycin detection

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The synthetic method of above-mentioned zinc coordination polymer, comprises the following steps:

[0050] In a beaker, combine 3,3'-dimercapto-biphenyl-p,p'-dicarboxylic acid and Zn(NO 3 ) 2 ·6H 2 O is evenly distributed in the mixed solution containing N,N-dimethylformamide, acetonitrile and water, then add dilute nitric acid, stir at room temperature 20-25°C for 3 minutes until the mixture is uniform (the concentration of dilute nitric acid is 2mol / L) , to obtain the clear liquid, seal the clear liquid in a (stainless steel) hydrothermal reaction kettle, place the hydrothermal reaction kettle in an oven at 85°C for 6 days (24 hours a day, the temperature remains unchanged), and naturally drop to room temperature 20 ~25°C, the colorless blocky single crystal obtained by filtration is a zinc coordination polymer, and the blocky single crystal obtained by filtration is washed and dried. The washing is carried out with N,N-dimethylformamide, and the drying process is ...

Embodiment 2

[0055] The synthetic method of above-mentioned zinc coordination polymer, comprises the following steps:

[0056] In a beaker, combine 3,3'-dimercapto-biphenyl-p,p'-dicarboxylic acid and Zn(NO 3 ) 2 ·6H 2 O is evenly distributed in the mixed solution containing N,N-dimethylformamide, acetonitrile and water, then add dilute nitric acid, and stir at room temperature 20-25°C for 3 minutes until the mixture is uniform (the concentration of dilute nitric acid is 2.3mol / L ), to obtain the clear liquid, seal the clear liquid in a (stainless steel) hydrothermal reaction kettle, place the hydrothermal reaction kettle in an oven at 90°C for 5 days (24 hours a day, the temperature remains unchanged), and naturally drop to room temperature 20~25°C, filter to obtain a colorless block single crystal as a zinc coordination polymer, wash and dry the filtered block single crystal, wash with N,N-dimethylformamide, and dry To dry in the air at room temperature 20 ~ 25 ℃ for one day.

[0057]...

Embodiment 3

[0061] The synthetic method of above-mentioned zinc coordination polymer, comprises the following steps:

[0062] In a beaker, combine 3,3'-dimercapto-biphenyl-p,p'-dicarboxylic acid and Zn(NO 3 ) 2 ·6H 2 O is evenly distributed in the mixed solution containing N,N-dimethylformamide, acetonitrile and water, then add dilute nitric acid, stir at room temperature 20-25°C for 3 minutes until the mixture is uniform (the concentration of dilute nitric acid is 2.5mol / L ), to obtain the clear liquid, seal the clear liquid in a (stainless steel) hydrothermal reaction kettle, place the hydrothermal reaction kettle in an oven at 95°C for 6 days (24 hours a day, the temperature remains unchanged), and naturally drop to room temperature 20~25°C, filter to obtain a colorless block single crystal as a zinc coordination polymer, wash and dry the filtered block single crystal, wash with N,N-dimethylformamide, and dry To dry in the air at room temperature 20 ~ 25 ℃ for one day.

[0063] 3,3...

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Abstract

The invention discloses a zinc coordination polymer as well as a synthesis method and application thereof in kanamycin detection. The chemical formula of the zinc coordination polymer is Zn (DMBPD). H2O, and DMBPD-2 is 3, 3'-dimercapto-biphenyl-p, p'-dicarboxylic acid radical. The synthesis method of the zinc coordination polymer comprises the steps of uniformly distributing 3, 3'-dimercapto-biphenyl-p, p'-dicarboxylic acid and Zn (II) metal salt in mixed solution containing N, N-dimethylformamide, acetonitrile and water, adding dilute nitric acid, uniformly mixing, keeping at the temperature of 85-95 DEG C for 4-6 days, cooling to the room temperature of 20-25 DEG C, and filtering to obtain colorless blocky single crystal, namely, the zinc coordination polymer. The synthesis method of the zinc coordination polymer is simple and easy to operate, the prepared zinc coordination polymer has the advantages of good stability and the like, kanamycin can be detected in an electrochemical impedance aptamer sensor, and the lower detection limit of kanamycin is 0.001 ng mL <-1 >.

Description

technical field [0001] The invention belongs to the technical field of kanamycin detection, and in particular relates to a zinc coordination polymer, a synthesis method thereof and an application in detection of kanamycin. Background technique [0002] Kanamycin is a class of antibiotics widely used in medicine and feed additives such as poultry. In recent decades, due to its unrestricted and widespread use, it has obviously produced many thorny problems in the fields of human health, environment and safety, such as the emergence of drug-resistant superbugs, water and soil pollution, and so on. For the human body, the excessive use of kanamycin directly leads to hearing loss, loss of appetite, diarrhea, skin rash, and even myocardial depression, respiratory failure, and shock death in severe cases. Although many countries have begun to legislate to restrict the use of antibiotics, making some progress in the governance and regulation of antibiotics, antibiotic residues and ...

Claims

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Application Information

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IPC IPC(8): C08G83/00G01N27/02G01N27/327
CPCC08G83/008G01N27/3275G01N27/021
Inventor 贺鸿明闫颖袁婧
Owner TIANJIN NORMAL UNIVERSITY