Electron spin resonance instrument

• 详细介绍
• 详细参数

• 详细介绍

  Electron Spin Resonance (Spectroscopy) Apparatus (EPR)

  
  

  System composition:

     Microwave bridge, control cabinet (including signal channel, magnetic field controller), magnet, power supply, resonant cavity, etc., as well as liquid nitrogen temperature change unit, ultraviolet light system, etc.;

  
  

  working principle:

     Electron Spin Resonance Spectrometer (EPR) is a spectroscopic method for detecting samples with unpaired electrons. Even in ongoing chemical and physical reactions, it can obtain meaningful material structure information and dynamic information without affecting these reactions. When a substance containing unpaired electrons is placed in the resonant cavity and then placed in an external magnetic field (generated by a magnet and power supply, controlled by a magnetic field controller), the unpaired electrons will undergo energy level splitting (with energy level difference), and then in the magnetic field When the microwave energy is equal to the energy level difference described above, a part of the electrons in the lower energy level will absorb the microwave energy and jump to the higher energy level, which means that the electrons will be forwarded to the higher energy level. Magnetic resonance. Then we detect the absorbed energy, and further process the detected signal (completed by the signal channel), and finally have the data system output.

  Main function: Detect the microstructure information and dynamic information of samples containing free radicals or transition metal ions.

  
  

  The main purpose:

  1. Chemistry: Mainly research free radical reaction kinetics.

  2. Physics: Mainly used in the research of crystal defects, optical detection of excited molecular magnetic resonance, crystal field in single crystal and recombination at low temperature.

  3. Material science: mainly used in the research of photocatalytic materials, coating and polymer aging caused by light, polymer properties, gem defects, optical fiber defects, laser materials, organic conductor impurities and the influence of semiconductor defects, new magnetic materials Research on the properties, high temperature superconductivity, C60 compounds, and free radical behavior in corrosion.

  4. Life sciences: Mainly used in spin labeling and spin probe technology, spin capture, dynamic properties of biomolecules using saturation transfer technology, and free radicals in living tissues and body fluids.

  In addition to basic theoretical research, EPR has also recently achieved good applications in quality control and testing in industries such as beer, food, edible oil, tobacco, and cosmetics.

• 详细参数

• 产品特色

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• 详细介绍

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