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QXI Probes

Quadruple Resonance Probe (QXI) - An extensively used observe tunable multinuclear probe, optimized for X-nuclei detection.

Bruker’s Quadruple (QXI) Resonance Probes are used extensively for the family of quadruple resonance experiments developed to perform NMR structure determination of biological macromolecules. Select a probe with decoupling nuclei to match your sample requirements.

Quadruple Resonance Probes give you access to advanced NMR techniques, letting you pulse up to four nuclei in one experiment.

The inner coil of this probe is optimized for 1H observation. The inner coil is also tuned for decoupling of one specified nucleus. The outer coil of QXI probes is optimized for decoupling of two specified nuclei. You can simply switch between decoupling nuclei using an automated tuning and matching device (ATM). If you add a deuterium lock switch, you can decouple 2H as well, permitting decoupling of up to four nuclei in a single pulse sequence.

Technical Details

  • Inner coil is tuned for 1H observation
  • Available at 500 and 950 MHz
  • Sample diameter 5mm  
  • Z-Gradient at all frequencies
  • XYZ-Gradient can be ordered as option
  • Automated tuning and matching device (ATM) is available

Service and Support


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