CIQTEK EPR Spectroscopy at the 11th National Conference on Environmental Chemistry (NCEC)

High-Frequency & High-Field Pulse Electron Paramagnetic Resonance (EPR) at W-Band (94 GHz) High-frequency EPR technology offers numerous advantages, such as high g-value resolution and minimal sample volume. It is highly applicable in biology, chemistry, and materials science. CIQTEK EPR-W900 supports both continuous-wave and pulsed EPR measurement, including ENDOR, and enables variable temperature experiments from 4 to 300 K. It is equipped with a split-pair superconducting magnet, with a maximum magnetic field of up to 6 T. The superconducting magnet, combined with a cryogen‐free cryogenic system, stabilizes the temperature in the superconducting region without consuming liquid helium, ensuring stable operation and easy maintenance. The EPR software platform is the same as the CIQTEK X-band pulsed spectrometer, making it simple and user-friendly.

CIQTEK X-band pulse electron paramagnetic resonance (EPR or ESR) spectrometer EPR100 supports both continuous-wave EPR and pulse EPR functions. In addition to supporting conventional continuous-wave EPR experiments, the EPR100 can also finely control and measure electron spin quantum states using specific pulse sequences. This enables pulse EPR tests such as T1, T2, ESEEM (electron spin echo envelope modulation), HYSCORE (hyperfine sublevel correlation), etc.   The EPR100 instrument offers a comprehensive range of optional accessories, such as ENDOR, DEER, TR-EPR, and AWG modules, which fully meet the requirements of all current pulsed EPR experimental modes. When paired with a variable temperature system, it enables the detection of paramagnetic substances at ultralow temperatures.   Pulsed EPR spectroscopy provides higher spectral resolution, revealing the hyperfine interactions between electrons and nuclei and delivering more detailed structural information. This capability is irreplaceable and crucial in scientific research areas such as materials science, biomolecular structure analysis, etc.

X-Band Benchtop Electron Paramagnetic Resonance Spectrometer The CIQTEK EPR200M is a newly designed benchtop EPR spectrometer specializing in the qualitative and quantitative analysis of free radicals, transition metal ions, 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 the EPR instrument truly easy to use.   ★ Email our experts for custom solutions, quotes, or detailed brochures: info@ciqtek.com  

Modernize and upgrade your old EPR instrument for cutting-edge EPR research   This Modernization service will bring you features including: ▶ Higher Sensitivity: Ultra-low noise microwave source and signal detection technology ▶ Better Resolution: Precise magnetic field control technology ▶ Excellent Compatibility: Compatible with a wide range of EPR spectrometers ▶ Fast Delivery: Complete delivery of the modernized hardware within 2-6 months ▶ High-quality Service: On-site installation and 2-year warranty   ★ Email us for more details: info@ciqtek.com

The CIQTEK EPR300 Electron Paramagnetic Resonance (EPR) Spectrometer incorporates the latest microwave technology and an ultra-high-performance signal processing unit, significantly enhancing detection sensitivity and signal-to-noise ratio to an unprecedented level. It enables precise detection and analysis of unpaired electron signals even at extremely low spin concentrations, providing a novel approach for exploring microscopic physical and chemical properties of low-concentration substances such as free radicals and metal ions. Additionally, the EPR300 supports easy upgrades from X Band to Q Band, achieving higher g-value resolution, which is advantageous for detecting anisotropic samples. The EPR300 establishes a solid experimental foundation for cutting-edge research in life sciences, materials science, chemistry, and physics, driving scientific discoveries to new milestones.

Compared with conventional X-band electron paramagnetic resonance (EPR), high-frequency EPR offers significant advantages and provides important capabilities across biological, chemical, and materials research.   CIQTEK EPR-Q400 is a Q-band high-frequency pulse EPR spectrometer equipped with both continuous-wave (CW) and pulse EPR measurement modes (for CW-only experiments, the EPR-Q300 CW spectrometer is available). It supports variable-temperature experiments from 4 to 300 K. The EPR software platform is the same as the other CIQTEK X-band pulse spectrometers, making it simple and user-friendly.