Pulsed/CW X-Band (9.5 GHz) EPR
Pulsed/CW X-Band (9.5 GHz) EPR
Bruker - Elexsys 580
NanoEarth
Pacific Northwest National Laboratory
Environmental Molecular Sciences Laboratory (EMSL-PNNL)
- Metrology/Characterization
- Structure or Device
- Other
Description
The Bruker Elexsys 580 electron paramagnetic resonance (EPR) spectrometer performs continuous wave and pulsed magnetic resonance using electron spins to selectively focus on certain types of molecules, such as free radicals and paramagnetic metal complexes, while ignoring the other components of the sample.
Research using this spectrometer focuses on in situ experiments, making it a capability that is unique for user facilities. As such, the instrument provides the researcher with the ability to:
Obtain structural and redox information for samples containing paramagnetic metals, including metalloproteins
Obtain in situ EPR spectra correlated with electrochemical experiments such as Cyclic Voltametry
Perform optical excitations via a mercury lamp equipped with bandpass filters, light pipe, adjustable iris, remote shutter and chopper.
Perform rapid mixing, freeze-quench, spin-trap and continuous flow experiments to observe short lived radicals.
The sample temperature can be regulated from 100-600K (using a nitrogen cryostat), or from 1.8K to room temperature (using the helium cryostat). Several resonators are available, including optical access, flat-cell, parallel mode and super-Q cavities for CW, and Dielectric and Split-ring resonators for pulsed experiments.
Research using this spectrometer focuses on in situ experiments, making it a capability that is unique for user facilities. As such, the instrument provides the researcher with the ability to:
Obtain structural and redox information for samples containing paramagnetic metals, including metalloproteins
Obtain in situ EPR spectra correlated with electrochemical experiments such as Cyclic Voltametry
Perform optical excitations via a mercury lamp equipped with bandpass filters, light pipe, adjustable iris, remote shutter and chopper.
Perform rapid mixing, freeze-quench, spin-trap and continuous flow experiments to observe short lived radicals.
The sample temperature can be regulated from 100-600K (using a nitrogen cryostat), or from 1.8K to room temperature (using the helium cryostat). Several resonators are available, including optical access, flat-cell, parallel mode and super-Q cavities for CW, and Dielectric and Split-ring resonators for pulsed experiments.