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.
*Accessories: Liquid nitrogen variable temperature with cryostat; Liquid helium variable temperature; 4 mm outer diameter sample tube; Goniometers; Electrolytic cell; Irradiation system; Flat cell.
Meet different needs: light, low temperature, corner, etc.
Stable magnetic fields with precise scanning control and over-zero field scanning technique.
Sequence generator with an unlimited number of pulses for kinetic decoupling techniques with a large number of pulses.
Up to 450 W pulse power with high-performance pulse EPR probe for more efficient narrow pulse excitation.
Microwave pulse time resolution up to 50 ps for improved spectral line resolution in pulse mode.
High Precision Digital Time Delay Pulse Generation Control
The high-precision digital time delay pulse generator with 50 ps time resolution accuracy provides a more accurate timing control function, which can be combined with table or code sequence editing to complete various pulse experiments more efficiently.
Advanced Liquid Helium-free Variable Temperature System
Dry, liquid helium-free cryogenic systems for variable temperature control in experiments, with no liquid helium consumption during use, continuous operation, greater safety, better environmental protection, and lower operating costs.
Support for Upgrading High Frequency
Support for upgrading some modules makes the whole machine upgrade to Q-band, W-band, and other higher frequency band EPR spectroscopy for high-frequency EPR research.
EPR Application Fields
Study of structures of coordination compounds, catalytic reactions, free radicals detection, reactive oxygen species (ROS) detection, chemical kinetics (reaction kinetics), and small-molecule drugs.
Environmental monitoring includes air pollution(PM2.5), advanced oxidation wastewater treatment, transition metals heavy metals, environmentally persistent free radicals, etc.
Single-crystal defects, magnetic material properties, semiconductor conduction electrons, solar cell materials, polymer properties, fiber optic defects, catalytic material detection, etc.
Research about antioxidant characterization, metalloenzyme spin labeling, reactive oxygen species (ROS) and enzyme activity characterization, occupational disease protection, nuclear radiation emergency medical rescue diagnosis classification, cancer radiotherapy irradiation, etc.
Irradiation dose of agricultural products, beer flavor shelf life, edible oil rancidity detection, alanine dosimeter, antioxidant properties of food and beverage, etc.
Coating aging research, cosmetic free radical protection factor, diamond trap identification, tobacco filter efficacy, petrochemical free radical quality control, etc.
EPR Application Cases
Kinetic decoupling pulse experiments extend electron spin decoherence time in malonic acid single crystals Time(μs)
Electron spins in solid-state systems are one of the important carriers of quantum bits required for quantum computing research, and pulsed electron paramagnetic resonance techniques can enable the preparation, manipulation, and readout of electron spin quantum states for the study of important problems in quantum computing. Scientists have used the optimal kinetic decoupling technique to improve the decoherence time of electron spins in solid-state systems from 0.04 μs to 30 μs in gamma-irradiated malonic acid single crystals.
Electron-electron double resonance technique is one of the important tools for biological structure elucidation. Using the electron spin labeling technique for specific labeling of biomolecules such as proteins and RNA, the electron-electron interaction strength is measured by the EPR (ESR) technique, which can provide information on the distance between labeled sites and thus can be used for biological structure resolution. This technique can be used to measure 1.7-8.
EPR Spectra, 3P-ESEEM spectrum of CoTPP(py)
EPR Spectra, ENDOR spectra of coal samples
By studying the electron-electron interactions, distance detection between paramagnetic species in close proximity to physiological reactions or chemical reaction environments can be achieved.
The hyperfine and nuclear quadrupole moment interactions of electrons with nuclei can be detected.
The pulse output of arbitrary waveform can be realized, and the amplitude, phase, frequency, and waveform envelope of the pulse can be modified to perform customized and complex pulse experiments.
The combination of time-resolved techniques with paramagnetic resonance spectroscopy can be used to study transients such as free radicals or excited triplet states during fast reactions.
CIQTEK EPR-W900 is a W-band (94 GHz) high-frequency electron paramagnetic resonance (EPR or ESR) spectrometer 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.Learn More
CIQTEK EPR200M is an X-band benchtop electron paramagnetic resonance/electron spin resonance (EPR or ESR) spectroscopy. Based on its high sensitivity and stability, it offers an economical, low-maintenance, and user-friendly experience for EPR study and analysis. *Accessories: Liquid nitrogen variable temperature with cryostat; 4 mm outer diameter sample tube; Goniometer; Light system; Electrolytic cell; Flat cell.Learn More
CIQTEK EPR200-Plus is designed for CW-EPR studies. Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectrometer 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 spectrometer is particularly useful for studying metal complexes or organic radicals so it has important applications in the fields of chemistry, materials, physics, environment, and medicine. *Accessories: Liquid nitrogen variable temperature with cryostat; Liquid helium variable temperature; Sample tubes; Goniometers; Electrolytic cell; Irradiation system; Flat cell.Learn More