EPR Instruments


The Bruker EMXplus provides premium performance for EPR research. It features several 2D operation modes where the second axis can be time, temperature, goniometer angle or microwave power.

Embodying a new EPR philosophy

Premium performance for routine research

Magnetic field sweep from 100 mG up to 1.7 T.
Simultaneous detection of first and second harmonic or 0˚/ 90˚ modulation phase.
Large and small signals can be detected with one gain setting
EMXplus Supreme Resolution and Sensitivity for EPR Spectroscopy Bochure
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EMXplus Features

  • 24 bit center field resolution, corresponding to a precision better than 1 mG
  • 24 bit signal digitization
  • Up to 256,000 points for field and time sweeps
  • Sensitivity up to 2000:1 (International Weak-Pitch Protocol) with PremiumX
  • Easy upgrade to multifrequency CW-EPR from L-band to Q-band
  • CW-ENDOR available in this spectrometer class
  • Range of accessories and dedicated resonators
  • Devoted Instruments



X-band sensitivity 1.6 x 109
Weak pitch signal-to-noise ratio 2000 : 1
Modulation frequency 4 to 100 kHz in 1 kHz steps
Modulation amplitude up to 20 G
Field stability 10 mG / hour
Sweep resolution 256 000
Amplitude resolution 24 bit
Time constant 0.01 ms - 1 s
Simultaneous detection 0° / 90° modulation phase
  1st / 2nd harmonic
  dual inputs
Triggering internal / external
Option up to 90 dB microwave attenuation


Service & Life Cycle Support for Magnetic Resonance and Preclinical Imaging

Bruker’s commitment to provide customers with unparalleled help throughout the buying cycle, from initial inquiry to evaluation, installation, and the lifetime of the instrument is now characterized by the LabScape service concept.

LabScape Maintenance Agreements, On-Site On-Demand and Enhance Your Lab are designed to offer a new approach to maintenance and service for the modern laboratory