bg1585188412230                erp200plus
X-Band CW-EPR Spectrometer
The 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. It is also suitable for quantitative EPR research, such as EPR dating and EPR tooth dosimetry research. It comes with several 2D operation modes where the second axis can be microwave power, time, temperature, and goniometer angle.
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.
Irradiated Food Surveillance
Food irradiation technology plays an irreplaceable role in ensuring food health and safety and reducing contamination and chemical residues. In the presence of ionizing radiation, the covalent bonds of internal compounds are split and a large number of free radicals are generated. Electron paramagnetic resonance techniques can detect the long-lived free radicals produced by irradiation and thus identify irradiated foods containing cellulose, bone and icing sugar, among others.



ESR Method - Detection of Irradiated Foods containing Cellulose

DB32/T 1269-2008  ESR

ESR Method-Detection of Irradiated Agricultural Products containing Crystalline Sugar

DB32/T 2554-2013

ESR Method-Export Irradiated Food Testing

SN/T 2910.1-2011

ESR Method-Identification of Irradiated Animal Derived Foods containing Bone

NY/T 1573-2007


Technical Details



Microwave Source

Low Noise Solid Wave Source

Frequency Range

9.2-9.9 GHz

Microwave Power

Microwave Source Power 600mW, Microwave Bridge 200 mW

Microwave Power Attenuation

0-60 dB,Stepping 1 dB

Modulation Field Amplitude

20 Gauss Max

Maximum Magnetic Field

0.7 T / 1.5 T

Magnetic Field Homogeneity

Better than 10 ppm@10 mm × 10 mm × 10 mm area

Field Stability

Better than 10 mG/h

Absolute Spin Number Sensitivity

3 × 109 spins/(G·√Hz)

Low Temperature System Temperature Range

4 K ‒ 300 K or 100K - 475K


Contact us (Phone: +86-551-62835225)


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

Contact us

Tel : +86-551-62835225
(Office Hours: Mon-Fri, 9:00-18:00, UTC+8)

Email :

Website :