Preparation method and micromolecule detection application of metal organic framework material
A metal-organic framework and organic framework technology, which is applied in the direction of material analysis, analysis materials, and measurement devices through electromagnetic means, can solve the problems of low concentration and interference of biomarkers, and achieve low preparation cost, high-efficiency analysis, and large sample volume. low effect
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[0040] Step 1: Preparation of instruments and reagents: set the matrix-assisted laser desorption ionization time-of-flight mass spectrometry detection mode to positive ion reflection mode;
[0041] Step 2: preparing metal-organic framework series substrates, including the following steps;
[0042] Step 2.1: Mix dimethylformamide, ethanol, deionized water, triethylamine, and terephthalic acid into a closed container, and add gold ferrous chloride or cobalt chloride or nickel chloride respectively;
[0043] Step 2.2: The mixture in step 2.1 was subjected to ultrasonic reaction in a water bath for 4 hours at 0°C;
[0044] Step 2.3: centrifuge the reactant in step 2.2, and wash with deionized water and isopropanol five times each to remove residual dimethylformamide;
[0045] Step 2.4: Disperse the product in step 2.3 in deionized water, and use low-speed centrifugation to separate the ultra-thin metal organic framework material (MOF-UL). According to the difference of metal chlo...
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