Bruker EMXplus
Bruker EMXplus CW-EPR Spectrometer
The Bruker EMXplus is a high-performance CW-EPR spectrometer designed for demanding routine research and advanced EPR spectroscopy. It combines high sensitivity and spectral resolution with flexible measurement capabilities, including automated 2D experiments where the second dimension can represent time, temperature, microwave power, or goniometer angle.
ADVANTAGES
APPLICATIONS
TECHNICAL SPECIFICATIONS
Advantages
- High sensitivity and spectral resolution
- 24-bit field and signal resolution
- Up to 256,000 points for field and time sweeps
- Magnetic field sweep from 100 mG to 1.7 T
- Sensitivity of up to 2000:1 with the PremiumX option
- Dual-channel detection
- Simultaneous detection of first and second harmonics or 0°/90° modulation phases
- Easy upgrade to multifrequency CW-EPR from L-band to Q-band
- CW-ENDOR capability
- Wide range of accessories and dedicated resonators
- Automated 2D measurement modes
- Flexible configuration for different research requirements
Applications
The EMXplus is suitable for EPR research in a wide range of fields, including:
- Chemistry – radicals, metal centers, electrochemistry, catalysis and reaction kinetics
- Materials science and physics – polymers, semiconductors, batteries, photovoltaics and carbon-based materials
- Life sciences – proteins, enzymes, RNA/DNA and reactive oxygen and nitrogen species
- Pharmaceutical research – degradation, stability, reaction monitoring and paramagnetic impurities
- Industrial applications – food stability, radiation effects, polymer analysis and diamond quality
Technical Specifications
- EPR band: X-band
- Magnetic field range: 100 mG–1.7 T
- X-band sensitivity: 1.6 × 10⁹
- Weak-pitch signal-to-noise ratio: 2000:1
- Modulation frequency: 4–100 kHz
- Modulation amplitude: up to 20 G
- Field stability: 10 mG/hour
- Sweep resolution: 256,000 points
- Amplitude resolution: 24 bit
- Time constant: 0.01 ms–1 s
- Detection: 0°/90° modulation phase, 1st/2nd harmonic and dual inputs
- Triggering: internal/external
- Microwave attenuation: up to 90 dB (option)
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