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An amino-functionalized ionic liquid-carbon nanotube based copper ion selective electrode and a preparing method thereof

A technology of amino functionalization and ionic liquid, which is applied in the direction of material analysis, measuring devices, instruments, etc. by electromagnetic means, can solve the problems of unsatisfactory response time and sensitivity, and achieve good hydrothermal stability, high precision, The effect of high adsorption capacity

Inactive Publication Date: 2016-04-06
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned copper ion selective electrodes have their own advantages and disadvantages, but most of them are not satisfactory in terms of response time and sensitivity

Method used

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  • An amino-functionalized ionic liquid-carbon nanotube based copper ion selective electrode and a preparing method thereof

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Comparison scheme
Effect test

Embodiment 1

[0022] A copper ion selective electrode based on amino functionalized ionic liquid-carbon nanotubes, comprising a glass tube, a glass tube inner filler and a copper wire inserted in the glass tube, the filler is composed of the following raw materials in proportion by weight: amino functionalized Ionic liquid: solid ionic liquid: carboxylated carbon nanotubes is 10:10:1, and the amino functionalized ionic liquid is 1-butyl-3-(2-ethylamino) imidazole bistrifluoromethanesulfonyl Amine, the solid ionic liquid is tetrabutylphosphonium bistrifluoromethanesulfonimide.

[0023] The preparation method of the above-mentioned copper ion selective electrode based on amino-functionalized ionic liquid-carbon nanotubes is as follows:

[0024] (1) Preparation of electrode filling solution: mix amino-functionalized ionic liquid, solid ionic liquid, and carboxylated carbon nanotubes according to the stated ratio to obtain a mixture, heat the mixture at 70°C until the mixture melts, and then ad...

Embodiment 2

[0027] A copper ion selective electrode based on amino functionalized ionic liquid-carbon nanotubes, comprising a glass tube, a glass tube inner filler and a copper wire inserted in the glass tube, the filler is composed of the following raw materials in proportion by weight: amino functionalized Ionic liquid: solid ionic liquid: carboxylated carbon nanotubes are 20:40:3, and the amino functionalized ionic liquid is 1-butyl-3-(2-ethylamino) imidazole bistrifluoromethanesulfonyl Amine, the solid ionic liquid is tetrabutylphosphonium bistrifluoromethanesulfonimide.

[0028] The preparation method of the above-mentioned copper ion selective electrode based on amino-functionalized ionic liquid-carbon nanotubes is as follows:

[0029] (1) Preparation of electrode filling solution: mix amino-functionalized ionic liquid, solid ionic liquid, and carboxylated carbon nanotubes according to the stated ratio to obtain a mixture, heat the mixture at 75°C until the mixture melts, and then a...

Embodiment 3

[0032] A copper ion selective electrode based on amino functionalized ionic liquid-carbon nanotubes, comprising a glass tube, a glass tube inner filler and a copper wire inserted in the glass tube, the filler is composed of the following raw materials in proportion by weight: amino functionalized Ionic liquid: solid ionic liquid: carboxylated carbon nanotubes are 40:20:3, and the amino functionalized ionic liquid is 1-butyl-3-(2-ethylamino) imidazole bistrifluoromethanesulfonyl Amine, the solid ionic liquid is tetrabutylphosphonium bistrifluoromethanesulfonimide.

[0033] The preparation method of the above-mentioned copper ion selective electrode based on amino-functionalized ionic liquid-carbon nanotubes is as follows:

[0034] (1) Preparation of electrode filling solution: mix amino-functionalized ionic liquid, solid ionic liquid, and carboxylated carbon nanotubes according to the stated ratio to obtain a mixture, heat the mixture at 73°C until the mixture melts, and then a...

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Abstract

The invention relates to the technical field of copper content detection and particularly relates to an amino-functionalized ionic liquid-carbon nanotube based copper ion selective electrode and a preparing method thereof. An electrode filling liquid comprises an amino-functionalized ionic liquid, a solid ionic liquid and carboxylated carbon nanotubes in a weight ratio of 10-40:10-40:1-3. The preparing method includes inserting a copper wire into a glass tube, fixing the copper wire to allow one end of the copper wire to be flushed with the glass tube and the other end to extend out of the glass tube, and adding the electrode filling liquid into the glass tube. Electroconductibility, sensitivity and selectivity of the copper ion selective electrode are greatly improved, and detection is shorter in time and higher in precision. The preparing method is simple, convenient, simple and suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of copper content detection, in particular to a method for preparing a copper ion selective electrode based on amino functionalized ionic liquid-carbon nanotubes. Background technique [0002] Copper is one of the eight essential trace elements in the human body. It is an important element for the growth of human bones and the formation of connective tissue. It is also a component of various enzymes in the human body. The absorption and utilization of iron are also affected by copper. Although copper is important to the human body, the human body's demand for copper is very close to the toxic amount. Like other heavy metals, excessive accumulation of copper in the human body can cause serious damage to the liver and nervous system of the human body. Therefore, it is of great significance to study the analysis method of copper content in food. At present, the main methods for measuring copper content are at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/333
CPCG01N27/333
Inventor 范云场缪娟户桂涛张社利张磊
Owner HENAN POLYTECHNIC UNIV
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