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benchtop epr spectroscopy

Benchtop EPR Spectrometer | EPR200M

X-band Benchtop Electron Paramagnetic Resonance or Electron Spin Resonance (EPR, ESR) Spectrometer

The CIQTEK EPR200M is a newly designed benchtop EPR spectroscopy specializing in the qualitative and quantitative analysis of free radicals, special valence transition metal ions, and material doping and defects. It is an excellent research tool for real-time monitoring of chemical reactions, in-depth evaluation of material properties, and exploration of pollutant degradation mechanisms in environmental science.

The EPR200M adopts a compact design and highly integrates the microwave source, magnetic field, probe, and main controller, ensuring sensitivity and stability while being compatible with diverse experimental needs. The user-friendly interface allows even first-time users to start quickly, making this advanced instrument truly easy to use.

 

★ Email our experts for custom solutions, quotes, or detailed brochures: info@ciqtek.com

 

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  • #Reliable & Stable
    The highly integrated system ensures the stability and durability of the EPR instrument and enables low-cost maintenance.
  • # Ease-to-Use
    The intuitive user interface simplifies operation and makes complex experimental setup easy to understand.
  • # Desktop Use
    Highly integrated, lightweight, and compact.
  • # Easy Tuning
    Manual and automatic tuning modes offer both fine control and automated convenience.
  • # Precise Quantitative Analysis
    Integrated automated software enables fast and accurate quantitative analysis without reference samples.
  • # Various Accessories
    Variable temperature (VT) system with cryostat, goniometer, in-situ irradiation system, etc.
  • EPR Applications in Chemistry
    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
    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
    EPR in Materials Science
    Crystal defects, magnetic materials, semiconductors, battery materials, optical fiber defects, polymer materials, etc.
  • EPR in Food Science
    EPR in Food Science
    Food irradiation detection and identification, beer flavor shelf life, edible oil rancidity detection, etc.
  • Applications of EPR in Biomedicine
    EPR in Biomedicine
    Characterization of antioxidant activity, characterization of metalloenzymes, spin labeling of biomacromolecules, etc.
  • Application of EPR in medical research
    EPR in Medical Research
    Occupational disease protection research, nuclear radiation emergency medical treatment, alanine dosimetry, cancer radiotherapy irradiation research, etc.
  • Applications of EPR in Industry
    EPR in Industry
    Coating aging research, diamond collector identification, tobacco filter efficiency, petrochemical quality control, residual inhibitor detection, cosmetic free radical protection factor, etc.
  • EPR in Geoarchaeology
    EPR in Geoarchaeology
    Quaternary dating (ranging from thousands to millions of years) is achieved through EPR analysis of fossils, rocks, corals, quartz, and soils.

 

Application of EPR in free radical detection

Application of EPR in Free Radical Detection

Free radicals are atoms or groups with unpaired electrons formed when covalent bonds are broken due to external factors such as light or heat. For relatively 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, singlet oxygen photoradicals, and other free radicals generated by photocatalytic processes.

EPR signal of vacancy

EPR in Vacancy Research

Vacancy is a concept in solid-state structural chemistry or materials science, that refers to the structure of the lattice lattice without due atoms. Common vacancies include oxygen vacancies, carbon vacancies, nitrogen vacancies, and sulfur vacancies.

EPR spectrum of CuCl2 solid powder

EPR in Paramagnetic Metal lons Research

For transition metal ions (including iron, palladium, and platinum group ions with unfilled 3d, 4d, and 5d 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. 

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 tailored for both new and experienced users to efficiently set up experiments. While EPR ProCt. contains basic data processing tools, it allows data files to be transferred to the data processing software EPR ProPr. with a single click.

  • CIQTEK EPR Spectroscopy Software

▶EPR ProPr.

EPR ProPr. processes EPR spectra and time-domain data independently of the control software. It can be installed on any laptop and provides easy access and a toolbox to suit every need.

  • CIQTEK EPR Spectroscopy Software
  • CIQTEK EPR Spectroscopy Software
 

▶ Variable Temperature System (VT System) with Cryostat

     Precise temperature control from low to high temperatures

Temperature change directly affects electron spins' state and dynamical behavior, so the temperature control technique is crucial for EPR research. Different temperature ranges can reveal different physical, chemical, and biological processes, providing researchers with a deeper understanding of the nature of substances and reaction mechanisms.
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).

▶ In-situ Irradiation Systems

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

The in-situ irradiation system effectively supports the EPR applications in photocatalysis research. 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.

▶ Goniometer

     360° goniometer for EPR studies in orientation-dependent substances

The goniometer achieves automatic and precise control from 0° to 360°, providing powerful technical support in orientation-dependent substances research and research of crystalline materials, diamonds, and jewelry.

▶ Sample Cells

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

CIQTEK Sample Cells Features:

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

Electrolytic Cell: Designed 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.

▶ EPR Experimental Solutions

- EPR Experiment Cases

 

- EPR Experiment Accessory Kits

25 pcs, 4 mm OD quartz tubes 1 sample tube holder
1000 pcs capillary tubes Sealing clay
1 DPPH standard sample 1 standard sample
1 manganese standard Tea standard sample
Animal hair standard sample Coffee standard sample
 

- EPR Teaching Kits

EPR200M Spectrometer
EPR200M Experimental Manual
EPR200M User Manual 
EPR200M Teacher's Guide
EPR200M Analysis and Processing Software (with Manual)

▶ EPR Spectrometer Modernize

  • CIQTEK EPR Spectroscopy Modernize

    CIQTEK EPR Spectrometer Modernize

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

Sensitivity  5×109 spins/(G·√Hz)
Signal-to-noise ratio ≥ 800:1
Operating frequency 9.2 to 9.9 GHz
Maximum modulation field amplitude 10 Gauss
Magnetic field scanning range -1,000 to 6,500 Gauss (supports zero-field scanning)
Maximum number of data points per scan 256,000 points
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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