A method for enhancing the intensity of tetracarboxyphenylporphyrin electrochemiluminescence

A technology of phenylporphyrin and luminescence intensity, which is applied in the direction of chemical instruments and methods, chemiluminescence/bioluminescence, luminescence materials, etc., can solve the problems that porphyrins are easy to agglomerate, and the ECL intensity needs to be improved, so as to solve the problems of agglomeration and improve the electric current. Chemiluminescent intensity, good stability

Active Publication Date: 2021-11-02
NORTHWEST NORMAL UNIVERSITY
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Problems solved by technology

In recent years, the literature on porphyrin electrochemiluminescence (ECL) has been reported, as the inventors of the present application found that tetracarboxyphenyl porphyrin (TCPP) was in the co-reactant K 2 S 2 o 8 A stable ECL signal can be produced under the action of porphyrin, but its ECL intensity still needs to be improved, and porphyrin is easy to aggregate under high concentration

Method used

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  • A method for enhancing the intensity of tetracarboxyphenylporphyrin electrochemiluminescence
  • A method for enhancing the intensity of tetracarboxyphenylporphyrin electrochemiluminescence
  • A method for enhancing the intensity of tetracarboxyphenylporphyrin electrochemiluminescence

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Experimental program
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Embodiment 1

[0023] Instruments used in the experiment

[0024] CHI1832 electrochemical analyzer (Shanghai Chenhua Instrument Co., Ltd.) was used for cyclic voltammetry experiments; MPI-A capillary electrophoresis-electrochemiluminescence analyzer (Xi’an Ruimai Analytical Instrument Co., Ltd.) was used for ECL experiments; ultraviolet-visible spectrometer ( Agilent-8453) was used for the determination of ultraviolet spectrum; the experiment used a traditional three-electrode system, in which the Ag / AgCl electrode (containing saturated KCl solution) was used as the reference electrode, the platinum electrode was used as the counter electrode, and the glassy carbon electrode (GCE, 3mm) was used as the Working electrode is used.

[0025] (1) Preparation process of acrylamide hydrogel:

[0026] ① Preparation of blank hydrogel

[0027] Phosphate buffer solution (pH=7.0), acrylamide solution (7mol·L -1 ), N, N'-methylenebisacrylamide solution (0.04mol L -1 ), ammonium persulfate solution (0....

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Abstract

The invention discloses a method for enhancing the intensity of electrochemiluminescence of tetracarboxyphenyl porphyrin. In the method, acrylamide hydrogel is used to coat tetracarboxyphenyl porphyrin. Compared with the prior art, the present invention can not only significantly increase the intensity of electrochemiluminescence of tetracarboxyphenyl porphyrin, but also solve the problem of agglomeration of tetracarboxyphenyl porphyrin at high concentrations, and has the advantages of simple operation and good stability advantage.

Description

technical field [0001] The invention relates to a method for enhancing the intensity of electrochemiluminescence of tetracarboxyphenyl porphyrin. Background technique [0002] Porphyrin compounds widely exist in nature and are closely related to life science. In life phenomena such as hemoglobin, myoglobin, magnesium porphyrin in chlorophyll, cobalt porphyrin in vitamin B12, etc. 2 , CO 2 complex biophysical processes such as transport and photosynthesis. Porphyrin compounds have good thermal stability, and their molecules have rigidity and flexibility, electronic buffering, photoelectric magnetism and high chemical stability. Therefore, porphyrin compounds are called "dyes of life". In recent years, the literature on porphyrin electrochemiluminescence (ECL) has been reported, as the inventors of the present application found that tetracarboxyphenyl porphyrin (TCPP) was in the co-reactant K 2 S 2 o 8 A stable ECL signal can be generated under the action of porphyrin, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/02C09K11/06G01N21/76B01J13/00
CPCB01J13/0065C09K11/025C09K11/06G01N21/76
Inventor 卢小泉魏丽萍吴艳霞王铁英孙和水张银潘李金芳胥亚丽陕多亮陈晶韩振刚
Owner NORTHWEST NORMAL UNIVERSITY
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