EPR200 PLUS

X-band CW-EPR Spectrometer
EPR200 PLUS

Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a method for studying materials paramagnetic species. EPR spectroscopy is particularly useful for studying metal complexes or organic radicals. EPR200 is designed for CW-EPR application. It is a powerful analytical tool for routine EPR research. EPR 200 has excellent sensitivity performance due to the use of low-noise microwave source and high-Q resonator. It is also suitable for quantitative EPR research, such as EPR(ESR) dating and EPR tooth dosimetry research. It features several 2D operation modes where the 2nd axis can be microwave power, time, temperature, and goniometer angle.

Application

Irradiation food monitoring

Food irradiation technology plays an irreplaceable role in ensuring food health, safety, reducing pollution and chemical residues. Under the action of ionizing radiation, the covalent bond of internal compounds will split and produce a large number of radicals. Electron paramagnetic resonance technology relies on the detection of long-lived radicals produced by irradiation to identify foods, such as irradiated foods containing cellulose, bone and crystal sugar.

Standard Chinese name	Index
ESR method - Detection of irradiated foods containing cellulose	DB32/T 1269-2008 ESR
ESR method-Detection of irradiated agricultural products containing crystal sugar	DB32/T 2554-2013
Determination of irradiated food for export ESR method	SN/T 2910.1-2011
Identification of irradiated animal derived foods containing bone ESR method	NY/T 1573-2007

Source: http://std.samr.gov.cn

Specifications

Indicators	Parameters
Microwave source	Low noise Gunn oscillator
Frequency range	9.2-9.9 GHz
Microwave power	Max 200 mW
Power attenuation	0-60 dB, 1 dB step
Modulation frequency	100 kHz,50 kHz,25 kHz,12.5 kHz,6.25 kHz
Modulation field amplitude	Max 20 Gauss
Magnetic field strength	0.7T（1.5T,1.8T Optional)
Field homogeneity	Better than 10 ppm@10 mm × 10 mm × 10 mm
Field stability	Better than 10 mG/h
Sensitivity	3 × 10⁹ spins/(G·√Hz)
Sample temperature range	4 K – 300 K or 100 K – 475 K

Address

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

Tel : +86-

Email :

Website : bex99.com

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