Chemiluminescence enhancer, preparation method thereof and application of chemiluminescence enhancer in hydrogen peroxide periodate system

A technology of chemiluminescence and enhancer, which is applied in the field of chemiluminescence, can solve problems such as space hindrance and limitation of metal active sites, and achieve the effects of increasing chemiluminescence intensity, low density, and improving detection sensitivity and accuracy

Active Publication Date: 2021-10-22
CHINA UNIV OF GEOSCIENCES (BEIJING)
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Problems solved by technology

However, most of the existing MOFs have certain permeability and stability problems, or the pore structure creates steric hindrance to the metal active sites.
These problems limit the effect of existing MOFs as catalysts to some extent.

Method used

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  • Chemiluminescence enhancer, preparation method thereof and application of chemiluminescence enhancer in hydrogen peroxide periodate system
  • Chemiluminescence enhancer, preparation method thereof and application of chemiluminescence enhancer in hydrogen peroxide periodate system
  • Chemiluminescence enhancer, preparation method thereof and application of chemiluminescence enhancer in hydrogen peroxide periodate system

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Embodiment Construction

[0033] Based on the above-mentioned defects such as low permeability of MOFs and the steric hindrance of organic ligands to the active metal space, the inventors adopted the following solutions. First of all, ultra-thin MOFs are selected to improve the catalytic efficiency. The nanometer thickness of ultrathin MOFs can achieve rapid mass transport, which can solve the problem of low permeability existing in existing MOFs. At the same time, ultrathin MOFs have a high proportion of exposed catalytically active surfaces and unsaturated metal sites, which can improve the catalytic effect. Second, the inventors chose terephthalic acid (BDC) as the ligand. The molecular structure of terephthalic acid (BDC) can reduce its steric hindrance to metal active sites.

[0034] Therefore, the present invention uses ultra-thin MOFs prepared by ultrasonic method with terephthalic acid (BDC) as a ligand and lanthanide metal as a central atom as a chemiluminescence enhancer, which can effectiv...

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Abstract

The invention relates to the field of chemiluminescence, and especially relates to a chemiluminescence enhancer, a preparation method thereof and application of the chemiluminescence enhancer in a hydrogen peroxide-periodate system. The luminescence enhancer comprises a rare earth metal organic framework material with nanometer thickness. The metal organic framework material is a nano rare earth metal organic framework material which is synthesized through an ultrasonic method by taking one metal atom of terephthalic acid (BDC), trivalent cerium (Ce), gadolinium (Gd) and holmium (Ho) as a ligand as a central atom. The molar ratio of the ligand to the metal central atom is 1: 1. The chemiluminescence enhancer can enhance the chemiluminescence of a hydrogen peroxide-periodate system so as to improve the detection effect of biochemical molecules.

Description

technical field [0001] The invention relates to the field of chemiluminescence, in particular to a chemiluminescence enhancer, a preparation method thereof and an application in a hydrogen peroxide-periodate system. Background technique [0002] Chemiluminescence (CL) is a luminescent phenomenon produced by chemical reactions. It has outstanding advantages such as high sensitivity, fast response, convenient operation, low instrument cost, and weak background signal. [0003] At present, chemiluminescence analysis has been widely used in many fields such as environmental science, life science, food science, and medical clinical diagnosis. However, chemiluminescence analysis still has problems such as weak luminescence signal and luminescence time period. Therefore, finding a suitable chemiluminescence enhancer to obtain a higher chemiluminescence signal has become a research focus in the field of chemiluminescence. Researchers have tried various methods to obtain a stronge...

Claims

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Application Information

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IPC IPC(8): B01J31/22C08G83/00C09K11/55G01N21/76
CPCC08G83/008B01J31/2239C09K11/55G01N21/76
Inventor 吴静黄春霞
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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