High Resolution
The g-value resolution is dependent on the microwave frequency. W-band EPR offers higher g-value resolution, which is beneficial for analyzing anisotropic samples. For disordered samples that are difficult to prepare as single crystals, e.g., membrane proteins, W-band EPR provides enhanced orientation selectivity.
High Sensitivity
With the same sample volume, a high cavity-filling factor improves the detection of low-quantity samples. At the same g-value, a higher resonant magnetic field facilitates better spin polarization, resulting in higher sensitivity in low-temperature experiments.

High Frequency and High Field
Ideal for studying fast kinetic processes and for detecting samples with strong zero-field splitting. Enhances electron-nuclear double resonance experiments by improving the detection and resolution of nuclei with low gyromagnetic ratios.
Cryogen-Free Superconducting Magnet
The split-pair superconducting magnet is specifically designed for high-frequency EPR. It employs a cryogen-free system to maintain superconducting temperatures without consuming liquid helium, ensuring stable operation and easy maintenance.

EPR in Chemistry
Explore reaction mechanisms in organic, electrochemical, and coordination chemistry, monitor free radical intermediates, and support drug discovery, and structural analysis of coordination compounds, and organic syntheses.
EPR in Life Sciences
Advanced oxidation processes, photocatalysis, air pollution monitoring, wastewater treatment, soil remediation, heavy metal pollution tracking, environmental persistent free radicals (EPFR), etc.
EPR in Materials Science
Crystal defects, magnetic materials, semiconductors, battery materials, optical fiber defects, polymer materials, etc.
EPR in Food Science
Food irradiation detection and identification, beer flavor shelf life, edible oil rancidity detection, etc.
EPR in Biomedicine
Characterization of antioxidant activity, characterization of metalloenzymes, spin labeling of biomacromolecules, etc.
EPR in Medical Research
Occupational disease protection research, nuclear radiation emergency medical treatment, alanine dosimetry, cancer radiotherapy irradiation research, etc.
EPR in Industry
Coating aging research, diamond defect identification, tobacco filter efficiency, petrochemical quality control, residual inhibitor detection, cosmetic free radical protection factor, etc.
EPR in Geoarchaeology
Quaternary dating (ranging from thousands to millions of years) is achieved through EPR analysis of fossils, rocks, corals, quartz, and soils.
EPR in Biological Structure Analysis
Double electron-electron resonance (DEER) is a vital tool for determining biomolecular structures. It measures electron-electron interaction strength and provides information on the distance between the labeled sites, thus allowing for the resolution of biological structures. The technique can be used to measure distances between 1.7 and 8 nm and is a non-destructive structure analysis tool.

W-band Continuous-wave EPR Experiment

W-band EPR analysis results with higher g-factor resolution

W-band Pulsed EPR Experiment

EDNMR spectra of LiF single-crystal
ENDOR spectra of LiF single-crystal
Transient EPR spectra of pentaphenyl crystal

Liquid Nitrogen / Liquid Helium Variable Temperature Cryostat

Low-temperature experiments are supported, with a range of temperature control:
From 4.4 K to 300 K (using liquid helium as the cryogen)
From 80 K to 300 K (using liquid nitrogen as the cryogen)

W-band Electron Nuclear Double Resonance (ENDOR) Probe

With the ENDOR probe and the RF amplifier, EPR-W900 supports pulsed ENDOR experiments.

W-band Time-Resolved EPR System

Combined with a pulsed laser, EPR-W900 supports time-resolved EPR experiments.

Arbitrary Waveform Generator

When integrated with an arbitrary waveform generator, EPR-W900 enables the output of microwave pulses with any desired waveform. The pulse amplitude, phase, frequency, and envelope can be modified for flexible, customizable complex pulse EPR experiments.

Publish in Nature! CIQTEK Pulse EPR Boosts The Discovers of New Method to Enhance Bit Performance
The research team at Westlake University used CIQTEK pulsed EPR Spectroscopy X-band EPR100 and W-band EPR-W900 to characterize two molecular qubit framework materials containing semi-quinone radicals.

>> Read More

CIQTEK Electron Paramagnetic Resonance (EPR) Spectrometers

Pulse Signal Acquisition Modes	Transient acquisition, single-point acquisition, and integration testing
Number of Pulse Channels	12 channels (+X, -X, +Y, -Y; 4 control channels; 4 expansion channels), supporting phase cycling
Pulse Time Resolution	0.05 ns
Number of Pulses	20,000 per channel, with support for unlimited loop playback
Solid-State Power Amplifier Output Power	2 W

Hot Tags : w band epr spectrometer epr technology high-frequency epr spectroscopy epr instrument free radicals pulse epr esr electron spin resonance esr electron paramagnetic resonance epr epr measurement

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