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Multifunctional nickel complexes based on organic ligands, method for synthesizing carbon paste electrode and application of carbon paste electrode

A technology of nickel complexes and organic ligands, applied in the direction of nickel organic compounds, electrochemical variables of materials, etc., can solve the problems of antibiotic loss and antibiotic failure, and achieve the enhancement of affinity, hydrophilicity, and sensitivity. Effect

Active Publication Date: 2018-02-16
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the extensive use of antibiotics, some antibiotics are lost to the environment. In the long-term environmental evolution, some bacteria have evolved corresponding immune mechanisms, leading to the failure of antibiotics.

Method used

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  • Multifunctional nickel complexes based on organic ligands, method for synthesizing carbon paste electrode and application of carbon paste electrode
  • Multifunctional nickel complexes based on organic ligands, method for synthesizing carbon paste electrode and application of carbon paste electrode
  • Multifunctional nickel complexes based on organic ligands, method for synthesizing carbon paste electrode and application of carbon paste electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 synthesizes [Ni(L)(H 2 O) 4 ]·(2,5-TPD), where L is N,N'-bis(4-methylenepyridine)benzene-1,4-dicarboxamide, the structural formula is: 2,5-TPD is 2,5-thiophenedicarboxylate

[0044] 0.1mmol NiCl 2 ·6H 2 O, 0.10 mmol N,N'-bis(4-methylenepyridine)benzene-1,4-dicarboxamide, 0.1 mmol 2,5-thiophenedicarboxylic acid, and 5 mL H 2 O was sequentially added to a 25mL beaker, stirred at room temperature for 20min to obtain a suspension mixture, adjusted the pH of the suspension mixture to 4.2 with 1mol / L NaOH solution, then transferred to a 25mL autoclave, heated at 5°C / h The temperature was raised to 110°C, kept under hydrothermal conditions for 48 hours, and the temperature was lowered to room temperature at a cooling rate of 5°C / h to obtain pink blocky crystals, which were washed alternately with deionized water and ethanol for 3 times, and dried naturally at room temperature. Get [Ni(L)(H 2 O) 4 ]·(2,5-TPD), the yield is 45%, and its XRD diffraction patte...

Embodiment 2

[0046] Embodiment 2 synthesizes [Ni(L)(H 2 O) 4 ]·(2,5-TPD), where L is N,N'-bis(4-methylenepyridine)benzene-1,4-dicarboxamide, and 2,5-TPD is 2,5-thiophene di Formate

[0047] 0.2mmol NiCl 2 ·6H 2 O, 0.10 mmol N,N'-bis(4-methylenepyridine)benzene-1,4-dicarboxamide, 0.15 mmol 2,5-thiophenedicarboxylic acid, and 10 mL H 2 O was sequentially added to a 25mL beaker, and stirred at room temperature for 40min to obtain a suspension mixture. After adjusting the pH of the suspension mixture to 5.5 with 1mol / L NaOH solution, it was transferred to a 25mL autoclave and heated at 5°C / h The temperature was raised to 120°C, kept under hydrothermal conditions for 96 hours, and the temperature was lowered to room temperature at a cooling rate of 5°C / h to obtain pink blocky crystals, which were washed alternately with deionized water and ethanol for 4 times, and dried naturally at room temperature. Get [Ni(L)(H 2 O) 4 ]·(2,5-TPD), the yield is 75%, and its XRD diffraction pattern is as...

Embodiment 3

[0049] Embodiment 3 synthesizes [Ni(L)(H 2 O) 4 ]·(2,5-TPD), where L is N,N'-bis(4-methylenepyridine)benzene-1,4-dicarboxamide, and 2,5-TPD is 2,5-thiophene di Formate

[0050] 0.3mmol NiCl 2 ·6H 2 O, 0.10 mmol N,N'-bis(4-methylenepyridine)benzene-1,4-dicarboxamide, 0.2 mmol 2,5-thiophenedicarboxylic acid, and 15 mL H 2 O was sequentially added to a 25mL beaker, and stirred at room temperature for 60min to obtain a suspension mixture. After adjusting the pH of the suspension mixture to 6.8 with 1mol / L NaOH solution, it was transferred to a 25mL autoclave and heated at 5°C / h The temperature was raised to 130°C, kept under hydrothermal conditions for 120 hours, and the temperature was lowered to room temperature at a cooling rate of 5°C / h to obtain pink blocky crystals, which were washed alternately with deionized water and ethanol for 5 times, and dried naturally at room temperature. Get [Ni(L)(H 2 O) 4 ]·(2,5-TPD), the yield is 55%, and its XRD diffraction pattern is as...

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Abstract

The invention discloses multifunctional nickel complexes based on organic ligands, a method for synthesizing a carbon paste electrode and an application of the carbon paste electrode; the complexes have the following molecular formulas: [Ni(L)(H2O)4].(2,5-TPD) and [Ni2(L)2(1,3-BDC)2(H2O)4].5H2O; a complex graphite powder is ground by an agate mortar and then is dispersed into liquid paraffin, andthe mixture is ground by the agate mortar and is packaged into a quartz glass tube; one end of a carbon paste is wiped flatly with sulfuric acid paper, the other end of the carbon paste is connected with a copper bar connected with 6-11 copper wires, and the complex carbon paste electrode is obtained. The synthesis method is simple, and three kinds of pollutants comprising hydrogen peroxide, nitrite and chloramphenicol can be effectively monitored. Meanwhile, the carbon paste working electrode can be simply and quickly updated and has good stability. The research and development of the workingelectrode is of great significance for detection of the pollutants.

Description

technical field [0001] The invention belongs to the field of synthesis of electroanalytical chemical materials, and in particular relates to a multifunctional nickel complex based on an organic ligand, a method for synthesizing a carbon paste electrode, and an application of the carbon paste electrode. Background technique [0002] Hydrogen peroxide (H 2 o 2 ), its aqueous solution is commonly known as hydrogen peroxide, which is a strong oxidizing agent. Hydrogen peroxide is highly corrosive, and inhalation of its vapor or mist is highly irritating to the respiratory tract. Although low concentrations of hydrogen peroxide are less toxic, they are classified as explosive hazards because they decompose and release oxygen. Hydrogen peroxide can be miscible with water in any ratio, and is suitable for wound disinfection, environment, food disinfection, etc. It will exist in the environment for a certain period of time, bringing huge hidden dangers to safe production and life...

Claims

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Application Information

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IPC IPC(8): C07F15/04G01N27/30
Inventor 王秀丽刘国成赵岷林宏艳王祥应俊刘滨秋张益嘉王桂娇
Owner BOHAI UNIV
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