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X – band Pulse EPR spectrometer
The EPR100 is a highly versatile X band pulse electron paramagnetic resonance spectrometer, it has high performance in pulse formation and data acquisition by the high precision control and readout system developed by CIQTEK, and is widely used in the research experiment of general electron spin echo detection, ESEEM, 2D-HYSCORE, ELDOR, pulsed-ENDOR, and laser triggered experiments.
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Free radicals
Free radicals are atoms that contain an unpaired electron and highly reactive and unstable molecules that are produced in the body naturally as a byproduct of metabolism (oxidation), or by exposure to toxins in the environment such as tobacco smoke and ultraviolet light. Free radicals have a lifespan of only a fraction of a second, but during that time can damage DNA, sometimes resulting in mutations that can lead to cancer. Antioxidants in the foods we eat can neutralize the unstable molecules, reducing the risk of damage. Electron paramagnetic resonance (EPR) is the only technique that can detect radicals directly.

Free radical structure of benzene and its EPR spectrum

As a new type of nanomagnetic material, metal fullerenes nanocomposites with paramagnetic characteristics have important value in magnetic resonance imaging, single-molecule magnet research, spin quantum information research, etc. The electron spin distribution in metal fullerenes can be obtained through EPR technology, to further study the hyperfine interaction between the spin and metal magnetic nucleus and detecting the change of fullerenes spin and magnetism in different environments.
Reference:Nanoscale 2018,10,3291

Sc3C2@C80 Molecular structure and EPR spectrum




CW-EPR performance

the same as EPR200-Plus

Pulse channels

Number of channels: 8

Channel 1:Microwave pulse with 0° (+X)

Channel 2:Microwave pulse with 90° (+Y)

Channel 3:Microwave pulse with 180° (-X)

Channel 4:Microwave pulse with 270° (-Y)

Channel 5: Gate of solid state power amplifier

Channel 6: Protection switch of Receiver LNA

Channel 7: ELDOR microwave pulse

Channel 8: For extension

Microwave pulse time resolution

50 ps

Output power of solid state power amplifier

Max 450 W

Phase stability of microwave pulse

Less than 2° in 800 us

Maximum microwave pulse length

3 ms

Minimum π / 2 pulse length

8 ns

Arbitrary waveform pulse modulation

Sampling rate 1 GSPS


CIQTEK Hefei : 1-4F, Area A, E2 Building, Innovation Industrial Park II, High-tech District, Hefei, Anhui

CIQTEK Wuxi : No. 2 Zhanqian Road, Huishan Intercity Railway Station, Huishan District, Wuxi

CIQTEK Shanghai : Room 8405,No.315 Emei Road, North Bund, Hongkou District, Shanghai

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Tel : +86-551-62835225
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