Benchtop EPR Spectrometer | EPR200M suppliers,Benchtop EPR Spectrometer | EPR200M manufacturers,Benchtop EPR Spectrometer

Reliable & Stable
Highly integrated system ensures the stability and durability of the EPR instrument for long-term operation, enabling low-cost maintenance.
Easy-to-Use
The User-friendly UI simplifies the operation process, making complex experimental setups clear at a glance.
Portable
Highly integrated, lightweight, and compact for desktop use.

Easy Tuning
Support manual and automatic tuning.
Fast & Accurate Quantitative Analysis
Integrated automation software enables fast and accurate quantitative analysis without reference samples.
Diverse Accessories
Variable temperature (VT) system with cryostat, goniometer, in-situ light illumination system, 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 Chemistry
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 Life Science
Environmental monitoring includes air pollution(PM2.5), advanced oxidation wastewater treatment, transition metals heavy metals, environmentally persistent free radicals, etc.
EPR in Material Science and Physics
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 Industry
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

As new nanomagnetic materials, Metallofullerenes 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)

Validation of EPR Measurements

Parallel magnetic field signal of a diamond

Signal of TEMPOL after deaeration

Various free radical signals

Cu valence

CIQTEK EPR Spectrometer Software:

▶ Control Software: EPR ProCt.

EPR ProCt. is the control software for operating all CIQTEK EPR spectrometers. The interface and utilities are customized for new and experienced users to set up experiments efficiently. While EPR ProCt. includes basic data processing tools, it allows data ﬁle transfer to the data processing software EPR ProPr. by one click.

Tune window in CW mode; Autotune available; Optional Q-value calculation
Pulse editor for programming time-domain experiments and acquisition

▶ EPR ProPr.

Independent from the control software, EPR ProPr. is for processing EPR spectra and time-domain data. EPR ProPr. can be installed on any laptop for easy access, providing a toolbox that meets various requirements.

Calculate the TEMPOL solution spectrum using the Double Integral program.
The solution-state spectrum is baseline-subtracted via the Baseline program.
Fit T₂ relaxation data of diamond NV-center with Stretched Exponential Decay fitting function of other predefined models.
Exponential
Bi-exponential
Exponential Decay

▶ Variable Temperature System (VT System) with Cryostat

Ultra-low to high temperature, precise temperature control solutions

Temperature change directly affects electron spins' state and dynamical behavior, so the temperature control system is crucial for EPR research.
EPR200M can be equipped with a liquid nitrogen VT system, which realizes precise temperature control from the liquid nitrogen temperature zone (100 K) to the high-temperature zone (600 K).

EPR Liquid Nitrogen VT System with Cryostat (100K to 600K)
EPR Spectra of Oxygen Vacancies at 100 K

▶ In-situ Irradiation Systems

Full ranges of in-situ irradiation systems with automatic optical filter switching

The in-situ irradiation system effectively supports the research of EPR applications in photocatalysis. The system flexibly supports in-situ and non-in-situ irradiation experiments and can be equipped with three different light sources to meet diversified research needs. The 6-position motorized optical filter switching system realizes the automatic switching of filters, which greatly improves the experimental efficiency and brings unprecedented convenience for photocatalytic research.

CIQTEK in-situ irradiation systems features:

Xenon lamp: 320 - 780 nm wavelength range

UV-enhanced xenon lamp: 320 - 780 nm wavelength range

Mercury lamp: 200 - 650 nm wavelength range (characteristic peaks at 313 nm, 365 nm, 405 nm, etc)

Xenon lamp
Mercury lamp
EPR spectra of superoxide anion generation by photocatalytic reaction

▶ Goniometer

Goniometer for EPR studies in orientation-dependent substances

The goniometer achieves automatic and precise control from 0° to 360°, providing powerful technical support in research fields such as crystalline materials, diamonds and jewelry.

Goniometer
EPR spectra of ruby specimens using the goniometer

▶ Sample Cells

Wide range of sample cells for multi-directional in-situ studies

CIQTEK sample cells feature:

Flat cell: real-time in-situ reaction testing, especially for polar solvent systems, significantly improving detection sensitivity.

Electrolytic Cell: Specially developed for in-situ electrolysis experiments, easily realizing online monitoring of electrochemical processes.

Flow Cell and Mixing Cell: Equipped with a peristaltic pump. For the in-situ continuous-flow EPR analysis. Easily accomplish in-situ mixing and reaction monitoring of multi-component samples.

Tissue Cell: Designed for biological tissue samples, providing convenient EPR analysis in the biological and medical fields.

Sample Cells

▶ EPR Spectrometer Modernize

EPR Spectrometer Modernize

Modernize your old EPR spectrometer for cutting-edge EPR research. >> Read more

Publish in Science: CIQTEK EPR Facilitates Research on Catalytic Reactions
The team demonstrated the CIQTEK EPR spectrometer's precise characterization capabilities, which helped them deepen their understanding of reaction mechanisms and develop innovative synthesis strategies.

>> Read More
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. (Video included)

>> Read More
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.

>> Read More
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).

>> Read More
100+ High-level Research Paper Published 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.

>> Read More
Analysis of Free Radical Spectra in Cigarettes with the CIQTEK EPR Spectroscopy, Cornell, USA
A demonstration by Jess Whittemore, a researcher at Cornell University, showed the process of capturing and quantifying free radicals emitted by cigarettes. (Video included)

>> Read More
CIQTEK Benchtop EPR Spectroscopy Demo at ACERT Workshop, USA
CIQTEK demonstrated its benchtop EPR200M at the National Advanced Electron Spin Resonance Spectroscopy Resource (ACERT) Symposium organized by Cornell University.

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CIQTEK EPR Instruments
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CIQTEK Electron Paramagnetic Resonance EPR Spectroscopy Collections

An Introduction to CIQTEK Benchtop EPR Spectrometer EPR200M

CIQTEK EPR Spectrometer User Stories by Cornell University Researchers

Analysis of Free Radical Spectra in Cigarettes with the CIQTEK EPR Spectrometer

CIQTEK EPR (ESR) Spectroscopy YouTube Video Playlist

Hot Tags : electron spin resonance spectroscopy epr spectra paramagnetic resonance x band epr epr measurement esr epr electron paramagnetic resonance epr spectroscopy cw epr spectroscopy

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