Ferric oxide substrate, preparation and application of ferric oxide substance in cerebrospinal fluid mass spectrometry
An iron oxide and mass spectrometry analysis technology, applied in the field of mass spectrometry detection, can solve the problems of low background noise and good enhancement effect, and achieve the effects of simple operation, good protein resistance and convenient operation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0043] The preparation method of iron oxide matrix, comprises the following steps:
[0044] The first step: using ethylene glycol as a solvent to prepare ferric chloride and trisodium citrate solution;
[0045] Step 2: Add sodium acetate to the above solution, and ultrasonicate at room temperature until the solution is homogeneously dispersed;
[0046] The third step: move the mixed solution obtained in the second step to a polytetrafluoroethylene-lined stainless steel hydrothermal reactor, and keep it at 200 ° C for 10 hours to form iron oxide nanoparticles;
[0047] The fourth step: the iron oxide nanoparticles obtained in the third step were repeatedly washed with ethanol and deionized water, and dried at 60° C. to form a powder.
[0048] Instruments used for characterization:
[0049] The size and morphology of the product were characterized by JEOL JEM-2100F transmission electron microscope (TEM), JEOL JEM-2100F high resolution transmission electron microscope (HRTEM) and...
Embodiment 1
[0052] Embodiment 1 detects glucose standard substance
[0053] The steps for matrix-assisted laser desorption ionization time-of-flight mass spectrometry detection of human cerebrospinal fluid using iron oxide nanoparticle matrix are as follows:
[0054] (1) Preparation of instruments and reagents: laser desorption ionization mass spectrometer, only mass spectrometry signals with a signal-to-noise ratio greater than 10 are used for analysis. Using AB SCIEX TOF / TOF TM 5800 mass spectrometer, Nd:YAG laser, wavelength 355nm. The pulse electric field delay extraction and reflection working mode is adopted, and the positive ion mode is used for detection. DataExplorer was used to observe, process, and analyze data, and only mass spectrometer signals with a signal-to-noise ratio greater than 10 were used for analysis.
[0055] (2) Preparation of iron oxide nanoparticles.
[0056] (3) Composite mass spectrometry analysis of iron oxide nanoparticles and mannitol molecules Composi...
Embodiment 2
[0061] Embodiment 2 detects mannitol standard substance
[0062] (1) Preparation of instruments and reagents: laser desorption ionization mass spectrometer, only mass spectrometry signals with a signal-to-noise ratio greater than 10 are used for analysis;
[0063] (2) Preparation of iron oxide nanoparticles;
[0064] (3) Composite mass spectrometry analysis of iron oxide nanoparticles and mannitol molecules.
[0065] The specific steps are similar to those in Embodiment 1, and will not be repeated here.
PUM
Property | Measurement | Unit |
---|---|---|
Size | aaaaa | aaaaa |
Size | aaaaa | aaaaa |
Diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com