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Electrochemiluminescence material and one-pot preparation method and application thereof

A technology of electrochemistry and luminescence materials, applied in chemiluminescence/bioluminescence, analysis by chemical reaction of materials, etc., can solve the problems of complex electrochemical system, cumbersome analysis steps, limited application of electrochemiluminescence, etc. Achieve the effect of easy large-scale application, obvious color change, and large-scale production and application

Active Publication Date: 2017-11-17
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the introduction of redundant co-reactants into the system may make the electrochemical system more complex and the analysis steps more cumbersome, thus limiting the application of electrochemiluminescence in some fields

Method used

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  • Electrochemiluminescence material and one-pot preparation method and application thereof
  • Electrochemiluminescence material and one-pot preparation method and application thereof
  • Electrochemiluminescence material and one-pot preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) One-pot preparation of red fluorescent 2-diethylaminoethanethiol-coated cadmium telluride quantum dots:

[0026] (a) Take 50.8mg tellurium powder and 10mL H 2 O was added to a 25mL round-bottomed flask, and nitrogen gas was introduced for 15 minutes to remove oxygen in the solution. After the system was heated to 80°C in an 80°C oil bath, 37.8mg of NaBH was quickly added 4 , reacted for 25min, the color of the solution gradually turned into dark purple, and NaHTe solution was obtained;

[0027] (b) Take 91.3mg CdCl 2 2.5H 2 O and 40mL H 2 O was added to a 50mL round bottom flask, magnetically stirred to dissolve it, and then 158.7mg of 2-diethylaminoethanethiol hydrochloride was added to it, and the pH of the system was adjusted to 5.5 with 0.1M NaOH; The obtained NaHTe solution was quickly injected into the above system, and the color of the solution quickly turned reddish brown. It was placed in an oil bath at 120°C and refluxed for 10.5 hours. Finally, it was...

Embodiment 2

[0041] (1) One-pot preparation of orange fluorescent 2-diethylaminoethanethiol-coated cadmium telluride quantum dots:

[0042] (a) Take 50.8mg tellurium powder and 10mL H 2 O was added to a 25mL round-bottomed flask, and nitrogen gas was introduced for 20 minutes to remove the oxygen in the solution. After the system was heated to 78°C in an 80°C oil bath, 40mg of NaBH was quickly added. 4 , reacted for 30min, the color of the solution gradually turned into dark purple, and NaHTe solution was obtained;

[0043] (b) Take 91.8mg CdCl 2 .2.5H 2 O and 40mL H 2 O was added to a 50mL round bottom flask, magnetically stirred to dissolve it, and then 159mg of 2-diethylaminoethanethiol hydrochloride was added to it, and the pH of the system was adjusted to 5.56 with 0.2M NaOH; The obtained NaHTe solution was quickly injected into the above system, and the color of the solution quickly turned reddish brown. It was placed in an oil bath at 125°C and refluxed for 9 hours. Finally, it ...

Embodiment 3

[0055] (1) One-pot preparation of yellow fluorescent 2-diethylaminoethanethiol-coated cadmium telluride quantum dots:

[0056] (a) Take 25.4mg tellurium powder and 5mL H 2 O was added to a 25mL round-bottomed flask, and nitrogen gas was introduced for 15 minutes to remove the oxygen in the solution. After the system was heated to 80°C in an oil bath at 80°C, 18.9 mg of NaBH was quickly added. 4 , reacted for 25min, the color of the solution gradually turned into dark purple, and NaHTe solution was obtained;

[0057] (b) Take 45.9mg CdCl 2 2.5H 2 O and 20mL H 2 O was added to a 50mL round bottom flask, stirred magnetically to dissolve it, and then 79.4mg of 2-diethylaminoethanethiol hydrochloride was added to it, and the pH of the system was adjusted to 5.6 with 0.1M NaOH; 0.2mL of step (a) was taken with a syringe The prepared NaHTe solution was quickly injected into the above system, and the color of the solution quickly turned reddish brown. It was placed in an oil bath ...

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Abstract

The invention discloses a one-pot preparation method for an electrochemiluminescence material. The method includes the steps that a mixture solution of cadmium chloride, thiol hydrochloride and sodium hydrogen telluride is prepared, wherein the molar ratio of cadmium chloride to thiol hydrochloride to sodium hydrogen telluride is 1: (1-3.0): (0.04-0.1); the mixture solution is subjected to heating reflux for 0.5-10.5 hours at 115-125 DEG C under a stirring condition, and then the electrochemiluminescence material is obtained. Thiol hydrochloride is hydrochloride of a compound shown in the chemical formula 1, and the electrochemiluminescence material is cadmium telluride quantum dots coated by a compound shown in the chemical formula 1. The invention further discloses the electrochemiluminescence material prepared by the adoption of the one-pot preparation method of the material. The one-pot method for preparing the electrochemiluminescence material is simple, efficient, convenient, low in cost and wide in application range, the purpose of large-scale application is easy to achieve, and industrial production is easy to achieve; the prepared electrochemiluminescence material can also generate strong luminous signals under the condition that a solution does not contain a co-reaction agent, and not only is the situation avoided that the co-reaction agent is introduced into the solution, but also the efficiency and signals of electrochemiluminescence can be effectively improved.

Description

technical field [0001] The invention relates to the field of electrochemiluminescence analysis, in particular to a method for preparing an electrochemiluminescence material by a one-pot method, the electrochemiluminescence material prepared by the method and applications thereof. Background technique [0002] The electrochemiluminescence method has the characteristics of low cost, wide linear range and simple equipment. It can be used to explore the law of electron transfer in chemiluminescence and bioluminescence reactions in biologically active substances, which is beneficial to the understanding of the nature of chemiluminescence and bioluminescence reactions. . Therefore, the application of electrochemiluminescence in aspects such as clinical diagnosis, environment, immunity, food quality and determination of other substances has become a research field of great interest to optical and electroanalytical workers. [0003] Since the luminescent body itself often has low e...

Claims

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Application Information

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IPC IPC(8): G01N21/76
CPCG01N21/76
Inventor 丁收年韩亭亭张鑫刘金霞任璐璐董浩梁秀丽朱红允闫其报赵春芹
Owner SOUTHEAST UNIV
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