EPR Instruments

EMXplus

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

Highlights

Full

Freedom

Magnetic field sweep from 100 mG up to 1.7 T.

Dual

Channel

Simultaneous detection of first and second harmonic or 0˚/ 90˚ modulation phase.

Independent

Large and small signals can be detected with one gain setting

EMXmicro & EMXplus Supreme Resolution and Sensitivity for EPR Spectroscopy

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

Anwendungen

Applications

Simultaneous detection of first/second harmonic or 0˚/ 90˚ modulation phase with the one gain setting

Vanadyl acetylacetonate in toluene, red: 0˚ phase first harmonic and green: 90˚ phase second harmonic. Second Harmonic 90˚ for saturation transfer EPR to detect slow molecular motion. First Harmonic 90˚ for measurements of spin-lattice relaxation times.

Fully automated 2D operation modes with the second dimension as time, power, goniometer angle and more.

Time evolution of the EPR signal upon irradiation

Quick and convenient acquisition and analysis of saturation curves with Xenon software

Accessibility studies in biological systems

Spezifikationen

Specifications

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
	1^st / 2^nd harmonic
	dual inputs
Triggering	internal / external
Option	up to 90 dB microwave attenuation

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Labscape

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