X-Band CW-EPR Spectroscopy
CIQTEK EPR200-Plus is designed for CW-EPR applications. It is a powerful analytical tool for routine EPR (ESR) studies. The EPR200-Plus has excellent sensitivity performance due to the use of a low noise microwave source and a high quality-factor (Q) resonator.
Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectrometer is a method to study the structure, dynamics, and spatial distribution of unpaired electronics. It can provide in-situ and non-destructive information on electron spins, orbitals, and nuclei at the microscopic scale. EPR spectrometers are particularly useful for studying metal complexes or organic radicals.
Diversified Experiment Scenarios
It can be equipped with an in-situ light system, liquid nitrogen liquid helium cryogenic system, high-temperature system, automatic cornering system, electrochemical system, etc. to meet the needs of multi-scene experiments.
The built-in Mn standard for accurate quantitative EPR calculations and g-value correction calculations, and the detachable assembly allows for easy switching between unlabeled and labeled tests.
Absolute Quantitative EPR Technology
The absolute quantification of unpaired electron spins can be used to easily, quickly, and directly obtain the spin number of unpaired electrons in a test sample without the use of a reference or standard sample.
Simple and Easy-to-use Software
Automated software operation, including automatic tuning, automatic cornering, and other functions. The software supports 1D and 2D scanning modes to meet the needs of various testing applications. Integrated instrument control software, data processing software, and free radical capture database, testing, and data processing can be performed simultaneously.
High-quality Support & Service
Professional support team to provide professional technical services at any time. High-quality after-sales service team, 24/7 response, solving basic problems within 48 hours, solving problems that cannot be solved quickly within a week, or proposing clear solutions.
Advanced Microwave Technology
The ultra-low noise microwave generation technology combined with weak signal detection technology provides a guarantee for the high sensitivity of the EPR (ESR) spectrometer.
Customized Probes Design
The spectrometer probes can be equipped with optional continuous wave high Q probes, high-temperature probes, dual mode cavities, etc. Meanwhile, based on the high-quality probe design technology, the probe can be customized to meet the needs according to the usage scenario.
Superior Magnetic Field System
The maximum magnetic field strength can reach 1.5 T. The precise magnetic field scanning control technology makes the magnetic field uniformity better than 10 ppm and the long-time stability of the magnetic field better than 10 mG/h, which guarantees high-quality spectra.
Professional Spectrum Analysis Service
Experienced technical consultants and application engineers provide EPR (ESR) professional services to help beginners master the analysis and attribution of EPR spectra.
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
Antioxidant characterization, metalloenzyme spin labeling, reactive oxygen species (ROS) and enzyme activity characterization, occupational disease protection research, nuclear radiation emergency medical rescue diagnosis classification, cancer radiotherapy irradiation related research, 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.
TR-EPR (time-resolved EPR / transient EPR)
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.
High and Low Temperature Variation
High temperature up to 650 K to meet the demand of high-temperature reaction in the petrochemical field and realize in-situ high-temperature EPR detection. Low temperature to liquid nitrogen temperature or even liquid helium temperature, to achieve in-situ detection of weak signals at low temperatures, to help research exploration in the field of chemistry and materials. Fast temperature rise and fall to meet the needs of variable temperature testing.
Related News & Events
CIQTEK EPR Spectroscopy Contributes to Scientific Publications for Research Users
CIQTEK EPR (ESR) spectroscopy has helped several research users get scientific data and the results were finally published in high-level journals.Read More
CIQTEK-Sponsored RSC ESR 2022 Meeting Came to a Big Success
CIQTEK sponsored the 55th Royal Society of Chemistry International EPR Conference, held at the University of St. Andrews in Scotland, UK, from June 6-10, 2022.Read More
CIQTEK EPR Spectroscopy: Interview with Dr. Haijun Yang, Tsinghua University, China
We were honored to have Dr. Haijun Yang present his experience and feedback on the use of the CIQTEK EPR (ESR) spectroscopy since it was purchased and used by Tsinghua University MR Laboratory in 2020.Read More
Chongqing University Launches Analysis Services using CIQTEK EPR200-Plus
The Analysis and Testing Center of Chongqing University officially launched its EPR (ESR) analysis and testing services to the society based on CIQTEK EPR200-Plus on Sep.6th, 2021.Read More
Validation of Measurements
Parallel magnetic field signal of a diamond
Signal of TEMPOL after deaeration
Various free radicals signals