Preparation method of pyroracemic acid-3-nickle pyridinecarbonylhydrazone (II) coordination compound/multi-wall carbon nanotube modified glassy carbon electrode

A technology of nickel pyridinecarboylhydrazone and multi-walled carbon nanotubes, which is applied in the field of electrochemistry, can solve the problems such as no substitutes have been found, and achieve the effects of simple production method, good electrocatalytic oxidation activity, and high electrocatalytic oxidation activity

Inactive Publication Date: 2013-10-30
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nitrite is an important precursor of the carcinogen - amine nitrite. It has a long history as a preservative and coloring agent in meat processing. Bacillus has an inhibitory effect and has certain antiseptic properties, and no ideal substitute has been found so far

Method used

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  • Preparation method of pyroracemic acid-3-nickle pyridinecarbonylhydrazone (II) coordination compound/multi-wall carbon nanotube modified glassy carbon electrode

Examples

Experimental program
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Effect test

Embodiment

[0013] (1) Polish the glassy carbon electrode to a mirror surface on metallographic sandpaper, then place it in double-distilled water and absolute ethanol for 3 minutes, and then dry it in an infrared drying oven;

[0014] (2) Weigh 45.000mg of pyruvate-3-pyridineformylhydrazone nickel (II) complex and 1.000mg of multi-walled carbon nanotubes (previously use 98% nitric acid to heat and reflux for 4 hours) in a 25mL beaker , then accurately measure 10.0mL dimethyl sulfoxide with a pipette and add it, and then ultrasonically vibrate for 6 minutes;

[0015] (3) Use a micro sampler to extract 10 μL of the solution obtained in step (2), drop-coat it on the surface of the glassy carbon electrode dried in step (1), and dry it in an infrared drying oven to obtain the 3-pyridineformylhydrazone Schiff base Nickel(II) complexes / carbon nanotubes modified glassy carbon electrodes.

[0016] Make commercially available ham sausage into mud, accurately weigh 25.0g into a 100mL beaker, add 2...

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Abstract

The invention discloses a preparation method of a pyroracemic acid-3-nickle pyridinecarbonylhydrazone (II) coordination compound and a multi-wall carbon nanotube modified glassy carbon electrode. The method comprises the following steps of: polishing the glassy carbon electrode on metallographical sand paper till a mirror face is formed, putting into secondary distilled water and absolute ethyl alcohol in sequence for ultrasonically oscillating for 3 minutes, and drying in an infrared drying oven; (2) weighing 43.000-46.000mg of pyroracemic acid-3-pyridinecarbonylhydrazone (II) coordination compound and 0.500-3.500mg of multi-wall carbon nanotube (which is heated and refluxed with 98 percent by mass of nitric acid for four hours) into a 25mL beaker, accurately measuring 10.0mL of dimethyl sulfoxide for adding into the breaker by using a pipette, and ultrasonically oscillating for six minutes to obtain a suspension solution; and (3) sucking 10muL of the solution obtained in the step (2) by using a micro sampler, dripping onto the surface of the glassy carbon electrode dried in the step (1), and drying in the infrared drying oven. The preparation method disclosed by the invention is simple, and the prepared electrode has high electrocatalysis oxidation activity and can be applied to analytic determination of foods.

Description

technical field [0001] The invention belongs to the technical field of electrochemistry, and in particular relates to a preparation method of a pyruvate-3-pyridineformylhydrazone nickel (II) complex / multi-walled carbon nanotube modified glassy carbon electrode. Background technique [0002] At present, there are many kinds of Schiff bases and their complexes, various structures, and many unique properties. They are widely used in many fields such as analytical chemistry, medicine, catalysis, corrosion, and photochromism. Electrochemical analysis has attracted widespread attention because of its easy operation and convenient measurement anytime and anywhere. Among them, the application of complex-modified electrodes in analysis and testing is because the transition metal redox couples in the complexes can be used as small molecules and ions (such as ) and the electron exchange medium between the electrodes, the advantages are obvious. The unique physical and chemical prope...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/30
Inventor 张小鸽刘峥袁帅
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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