Benchtop EPR Spectroscopy | EPR200M suppliers,Benchtop EPR Spectroscopy | EPR200M manufacturers,Benchtop EPR Spectroscopy

Reliable & Stable
Superior sensitivity, accuracy, and stability. Lower cost of ownership and best price.
Easy-to-Use
Integrated control software and data processing software.
Portable
Highly integrated, lightweight, and compact for desktop use.

Easy Tuning
Support manual and automatic tuning.
Accurate Quantification
Optional built-in standards for accurate g-value/g-factor and quantitative EPR measurements.
Diverse Accessories
Liquid nitrogen variable temperature with cryostat, 4 mm outer diameter sample tube, Goniometer, Light system, Electrolytic cell, Flat cell, etc

Integrated System Design

The design integrates the optimized microwave, magnetic field, probe, and central control module, making the EPR machine easier to transport, space-saving, and adaptable to a broader range of test environments.
Superior Magnetic Field System

Sweeping ranges: -100 to 6500 Gauss, with over-zero field scanning possible.

Magnetic field: air-cooled and compact.

Magnetic field scanning control tech: uniformity of better than 50 mG in the sample area, guaranteeing high-quality spectra.
State-of-the-art Microwave Technology

Ultra-low noise microwave generation technology, combined with high-quality microwave probes and weak signal detection, guarantees the high sensitivity of the EPR spectrometer.
Professional EPR Spectra Analysis Service

Experienced technical and application engineers provide professional services to help customers master the EPR analysis and attribution of EPR spectra, even for beginners.

EPR in Chemicals
Study of structures of coordination compounds, catalytic reactions, free radicals detection, reactive oxygen species (ROS) detection, chemical kinetics (reaction kinetics), and small-molecule drugs.
EPR in Environmental Science
Environmental monitoring includes air pollution(PM2.5), advanced oxidation wastewater treatment, transition metals heavy metals, environmentally persistent free radicals, etc.
EPR in Materials Science
Single-crystal defects, magnetic material properties, semiconductor conduction electrons, solar cell materials, polymer properties, fiber optic defects, catalytic material detection, etc.

EPR in Biomedical
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.
EPR in Food Science
Irradiation dose of agricultural products, beer flavor shelf life, edible oil rancidity detection, alanine dosimeter, antioxidant properties of food and beverage, etc.
EPR in Industrial
Coating aging research, cosmetic free radical protection factor, diamond trap identification, tobacco filter efficacy, petrochemical free radical quality control, etc.

EPR Application Cases

EPR Detection of Free Radicals

Free radicals are atoms or groups with unpaired electrons that are formed when a compound molecule is subjected to external conditions such as light or heat and the covalent bonds are split. For more stable free radicals, EPR can detect them directly and quickly. For short-lived free radicals, they can be detected by spin trapping. For example, hydroxyl radicals, superoxide radicals, single-linear oxygen light radicals, and other radicals produced by photocatalytic processes.

Paramagnetic Metal lons

For transition metal ions (including iron, palladium, and platinum group ions with unfilled 3d, 4d, and 5d shell respectively) and rare earth metal ions (with unfilled 4f shell), these paramagnetic metal ions can be detected by EPR spectrometer due to the presence of the single electrons in their atomic orbitals, thus obtaining the valence and structure information. In the case of transition metal ions, there are usually multiple valence states and spin states with high and low spins. Parallel modes in a two-mode cavity allow detection of the integer spin regime.

Conduction Electrons in Metal

The EPR line shape that conducts electrons is related to the size of the conductor, which is of great significance in the field of lithium-ion batteries. EPR can non-invasively probe the interior of the battery to study the deposition process of lithium in a close-to-real situation, from which the microscopic size of metallic lithium deposits can be inferred.

Material Doping And Defects

Metallofullerenes, as new nanomagnetic materials, have significant application value in magnetic resonance imaging, single-molecule magnets, spin quantum information, and other fields. Through EPR technology, the electron spin distribution in metallofullerenes can be obtained, providing an in-depth understanding of the ultrafine interaction between spin and the magnetic nucleus of metals. It can detect changes in spin and magnetism of metallofullerenes in different environments. (Nanoscale 2018, 10, 3291)

Photocatalysis

Semiconductor photocatalytic materials have become a hot research topic due to their potential applications in environmental, energy, selective organic transformation, medical, and other ﬁelds. EPR technology can detect active species generated on the surface of photocatalysts, such as e-, h+, •OH, O₂, ¹O₂, SO₃, etc. It can detect and quantify vacancies or defects in photocatalytic materials, assist in studying active sites and reaction mechanisms of photocatalytic materials, optimize parameters for subsequent photocatalytic application processes, detect active species and their proportions during photocatalysis, and provide direct evidence for system reaction mechanisms. The ﬁgure shows the EPR spectra of 0.3-NCCN and CN, indicating that 0.3-NCCN contains more unpaired electrons, higher crystallinity, and an extended p-conjugated system, resulting in better photocatalytic performance. (International Journal of Hydrogen Energy, 2022, 47: 11841-11852)

Liquid Nitrogen Variable Temperature System with Cryostat
Perform in-situ low (high) temperature testing.
In-situ Optical Stimulation System
Based on the xenon lamp, the full wavelength in-situ illumination demand from UV, visible to near-infrared light is realized, effectively helping the development of scientific research in the field of photocatalysis.
Goniometer
Software control enables automatic corner turning, which can be used to study the properties of crystals with different orientations.

Liquid Nitrogen Variable Temperature System
Liquid Nitrogen Dewar
Light System

Sample Standard
4 mm OD Sample Tube, Flat Cell
Goniometer

Validation of EPR Measurements

Parallel magnetic field signal of a diamond

Signal of TEMPOL after deaeration

Various free radical signals

Cu valence

CIQTEK Electron Paramagnetic Resonance (EPR) Spectroscopy Collections

An Introduction to CIQTEK Benchtop EPR Spectroscopy EPR200M

CIQTEK EPR Spectroscopy User Stories by Cornell University Researchers

CIQTEK EPR (ESR) Spectroscopy YouTube Video Playlist

CIQTEK EPR Spectroscopy at Cornell University, USA
CIQTEK benchtop EPR200M spectroscopy was successfully delivered to Cornell University for research and teaching in the biomedical field. Jess Whittemore from Cornell University used a video to show the process of testing solid, and liquid samples using the EPR200M.

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CIQTEK EPR Spectroscopy at Seoul National University, Korea
CIQTEK Benchtop Electron Paramagnetic Resonance Spectroscopy EPR200M was successfully delivered to Prof. Lee Eunsung's group at Seoul National University.

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CIQTEK EPR Spectroscopy at the National University Of Singapore
CIQTEK X-Band Benchtop Electron Paramagnetic Resonance Spectroscopy EPR200M was successfully delivered to Prof. Chen's group at the National University of Singapore (NUS).

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High-Level Research Publications With CIQTEK EPR Spectroscopy
CIQTEK EPR Spectroscopy has assisted in completing hundreds of professional academic papers in scientific research, covering the environment, organic chemistry, materials science, catalysis, energy, and other research areas.

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EPR Software: EPR-Pro

CIQTEK self-developed EPR-Pro is based on the Windows system, with a rich variety of experimental types, compatible with various experimental modes such as continuous wave, pulse, and two-dimensional experiments, it can achieve automated tuning, angle control, temperature control, etc., and generate experimental reports with one click. The data processing software can be used offline, with rich data processing functions, including quantitative EPR analysis.

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