Skip to:

Login

Bruker EMXplus EPR Spectrometer

The Bruker EMXplus Spectrometer System uses EPR (Electron Paramagnetic Resonance) which is a very useful and powerful technique for studying samples that are paramagnetic (i.e. have unpaired electrons). Applications of EPR include:

  • Kinetics of radical reactions
  • Redox processes
  • Metal ions
  • Defects in crystals
  • Polymer properties
  • Effects of ionizing radiation
  • Spin labeling and spin trapping
  • Antioxidants
  • Enzyme and carcinogenic reactions
  • and many more

Spectrometer Features:

  • Microwave Frequency Range: CW X-Band (9 - 9.8GHz)
  • X-Band Solid State Ultra Low Noise Microwave Bridge
    • Max leveled source output: 200 mW
    • Max. attenuation: 60 dB
    • Tuning range: 60 MHz
    • Integrated Bridge Controller w/ real time display for optimizing parameters
  • Digital Ultra High Resolution Hall Field Controller
    • Operating Range: 100 G - 18 kG
    • Sweep Range: up to 0 - 18 kG (0 - 1.8 mT) in one scan
  • High Linearity Modulation Amplifier Module: 500 Hz - 120 kHz
  • High Sensitivity Probehead
    • Q > 15,000
    • Optical window for photactivated experiments
    • Up to 10mm sample tube access
    • Max. modulation amplitude: 20 G
    • Automatic cavity tuning and matching
  • AquaX and Flat Cell accessories for aqueous samples
  • Nitrogen and Helium cryostats for VT and Low T experiments, respectively
  • ENDOR Probehead w/ freqency range of 1 - 100 MHz
  • Programmable Goniometer for aquiring spectra at different orientations of the applied magnetic field with respect to the sample
  • Simulation Software: XSophe

 

Technical Primary Contact:
Jerry Hu