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Method for producing electrochemical luminous electrode

A light-emitting electrode and electrochemical technology, which is applied in the field of preparation of electrochemiluminescent electrodes, can solve the problems of complex structure of the measurement device, complicated control units, and reduced measurement sensitivity, and achieve simplified flow path components, mixing device components, detection Sensitivity improvement, direct effect of electron transfer

Inactive Publication Date: 2012-02-01
SUZHOU UNIV
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Problems solved by technology

[0007] On the other hand, in the traditional electrochemiluminescence analysis, the luminescent reagent is generally dissolved in the test solution or input into the test solution through a pipeline, the reagent consumption is large, and the structure of the measurement device is relatively complicated, often requiring multiple flow channel configurations, resulting in control The complexity of the unit, and the multi-channel mixing process will also cause the dilution of the substance to be tested and reduce the sensitivity of the assay

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  • Method for producing electrochemical luminous electrode
  • Method for producing electrochemical luminous electrode

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Embodiment 1

[0031] A method for preparing an electrochemiluminescence electrode, comprising the steps of:

[0032] (1) The ITO glass plate is used as the basic electrode. The ITO glass plate is a strip of 4cm′7mm. The insulating material is laid on its conductive surface. A round hole with a diameter of 5mm is left at one end of the ITO glass plate as the electrode area. Leave 2mm as connection area, see attached figure 1 As shown, the electrode area is located inside the insulating material; after completion, use dilute ammonia water, secondary water, ethanol, and secondary water to ultrasonically clean for 15 minutes each, and dry for later use;

[0033] (2) chitosan is dissolved in acetic acid of 0.05mol / L, is mixed with the chitosan solution that mass concentration is 0.1%;

[0034] The carbon nanotubes are ultrasonically treated in concentrated nitric acid and washed and dried before use, and then the carbon nanotubes are ultrasonically dispersed in the chitosan solution at a mass r...

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Abstract

The invention discloses a method for producing an electrochemical luminous electrode, which comprises the following steps: (1) a ITO glass plate is used as a basic electrode, an insulating material is laid on a conducting surface of the glass plate and an electrode area is provided at one end of the ITO glass plate; (2) chitosan is dissolved in acetate to prepare a chitosan solution, carbon nanotube is dispersed in the chitosan solution by using ultrasonic waves to form uniform dispersion liquid; a CdTe quantum dot solution and the dispersion liquid are mixed by using ultrasonic waves to obtain the preparation liquid; (3) the preparation liquid is absorbed to dispense on the electrode area of the electrode in a step (1), dried after evaporating moisture, then placed under an infrared lamp for heat treatment to obtain the electrochemical luminous electrode. The ITO glass work electrode modified based on the CdTe quantum dot of the invention is capable of realizing the immobilization of a luminous substance, so that the electron transfer of the quantum dot and an electrode surface can be direct even more, the electrochemical luminous electrode of the invention has the advantages of large luminous intensity, stable light intensity and high detection sensitivity.

Description

technical field [0001] The invention relates to a preparation method of an electrochemiluminescence electrode, which can be used as a working electrode in a flow injection electrochemiluminescence analysis device. Background technique [0002] Electrochemiluminescence, or Electrochemiluminescence (ECL for short), refers to the process in which the excited state of the substance generated by the electron transfer reaction on the electrode surface transitions back to the ground state to release energy in the form of light. The electrochemiluminescence analysis method is to directly use the electrochemical reaction to form an excited state luminescent body to emit light, or to generate light radiation through a chemical reaction between the electrolysis product or between the electrolysis product and a certain component in the system to realize the luminescence analysis of the determination of the analyte. Technology is the product of the combination of electrochemistry and che...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/76
Inventor 屠一锋赵金金余彩霞陈明
Owner SUZHOU UNIV
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