Ultra-High Field NMR Spectrometer

Bruker Ultra-High Field (UHF) NMR spectrometers are advanced analytical instruments utilizing hybrid superconducting magnet technology to generate magnetic fields exceeding 28.2 Tesla (1.2 GHz 1H frequency). By integrating Rare Earth Barium Copper Oxide (REBCO) high-temperature superconductors with traditional niobium-titanium (NbTi) and niobium-tin (Nb3Sn) conductors, these systems achieve field strengths up to 30.55 T, enabling breakthroughs in resolution and sensitivity for complex molecular analysis.

Spectral resolution scales linearly with magnetic field strength, allowing the separation of overlapping signals in large biomolecules and materials. The increased chemical shift dispersion at UHF reduces second-order distortion and resolves fine structural details inaccessible at lower fields, such as distinct aluminum sites in aluminophosphates or specific oxygen environments in bicarbonate species.

Sensitivity improvements follow a B0^1.5 dependence, significantly reducing acquisition times and sample requirements. Coupled with cryogenically cooled probes (CryoProbes) optimized for 1H, 13C, or 15N detection, UHF systems achieve signal-to-noise ratios over 5000:1, facilitating the study of concentration-limited samples like membrane proteins and intrinsically disordered proteins.

Magnetic Resonance Microscopy capabilities reach cellular resolution using gradient amplitudes up to 3000 mT/m. This enables non-invasive 3D imaging of microstructures in zebrafish brains and organoids with voxel sizes in the tens of micrometers, providing insights into diffusion dynamics and localized spectroscopy.

Applicable Scenarios

• Structural biology laboratories studying large protein complexes and molecular machines

• Solid-state NMR facilities analyzing quadrupolar nuclei in energy storage materials and catalysts

• Preclinical research centers performing high-resolution MRI on small animal models and organoids