EPR100 Spectroscopy: Interview with Dr. Haijun Yang, Analysis Center, Tsinghua University, China
EPR100 Spectroscopy: Interview with Dr. Haijun Yang, Analysis Center, Tsinghua University, China
July 12, 2022
We were honored to have Dr. Haijun Yang, a senior engineer from Tsinghua University's Analytical Center, one of China's top academic universities, present his experience and feedback on the use of the CIQTEK electronic paramagnetic resonance spectroscopy EPR100 since it was purchased and used by Tsinghua University MR Laboratory in 2020.
Dr. Haijun Yang said in the interview that the microwave bridge of CIQTEK EPR100 adopts advanced waveguide technology and the structure inside the chamber has been designed modularly. In the free radical test comparison experiment, there is basically no difference between the spectra obtained by CIQTEK EPR100 and other similar types of spectroscopy on the market.
CIQTEK Electron Paramagnetic Resonance Spectroscopy
CIQTEK EPR (ESR) spectroscopy provides a non-destructive analytical method for directly detecting paramagnetic materials and has a wide range of applications in physics, chemistry, biology, materials, and industry. It can study the composition, structure, and dynamics of magnetic molecules, transition metal ions, rare earth ions, ion clusters, doped materials, defective materials, free radicals, metalloproteins, and other substances containing unpaired electrons. It can provide in situ and non-destructive information on the microscopic scale of electron spins, orbitals, and nuclei.
The CIQTEK EPR200M is an X-band benchtop electron paramagnetic resonance/electron spin resonance (EPR or ESR) spectroscopy. Based on its high sensitivity and stability, EPR200M offers an economical, low-maintenance, and user-friendly experience for EPR study and analysis.
The CIQTEK EPR200-Plus Spectroscopy provides professional continuous wave electron paramagnetic resonance solutions for industrial and academic users. >> EPR200-Plus Accessories: Dual Mode Resonator, High-temperature System, Liquid Nitrogen Variable Temperature With Cryostat, Liquid helium Variable Temperature, Liquid Helium-free Dry Cryogenic System, Time-resolved EPR System, Goniometers, Irradiation system, Flat cell. Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a powerful analytical method to study the structure, dynamics, and spatial distribution of unpaired electronics in paramagnetic substances. It can provide in-situ and non-destructive information on electron spins, orbitals, and nuclei at the microscopic scale. EPR spectroscopy is particularly useful for studying metal complexes or organic radicals so it has important applications in the fields of chemistry, materials, physics, environment, etc.
CIQTEK X-band pulse electron paramagnetic resonance (EPR or ESR) spectroscopy EPR100 supports both continuous-wave EPR and pulse EPR functions, satisfying general CW EPR experiments while performing T1 /T2 / ESEEM (electron-spin echo envelope modulation) / HYSCORE (hyperfine sublevel correlation) and other pulsed EPR tests, which can achieve higher spectral resolution and reveal ultra-fine interactions between electrons and nuclei, thus providing users with more information about the structure of matter. >> Optionally equipped with a 4-300 K variable temperature device to enable the detection of paramagnetic substances at ultra-low (high) temperatures.>> EPR100 Accessories: Dual Mode Resonator; High-temperature System; Liquid Nitrogen Variable Temperature With Cryostat; Liquid Helium Variable Temperature; Liquid Helium-free Dry Cryogenic System; Time-resolved EPR System; ELDOR System; ENDOR System; Goniometers; Irradiation System; Flat Cell.
CIQTEK EPR-W900 is a W-band (94 GHz) high-frequency electron paramagnetic resonance (EPR or ESR) spectroscopy compatible with both continuous wave and pulsed EPR test functions. It is paired with a slit-type superconducting magnet with a maximum magnetic field of 6 T and can perform variable temperature experiments from 4-300 K.EPR-W900 has the same software operating platform as the CIQTEK X-band EPR100, providing users with a user-friendly experience.Compared with the traditional X-band EPR technology, high-frequency EPR has many advantages and has important applications in the fields of biology, chemistry, and materials.