Bruker Ultrashield 400 Plus 400 MHz NMR Spectrometer

Overview

The Bruker Ultrashield 400 Plus 400 MHz NMR Spectrometer is a high-performance, shielded superconducting Fourier-transform nuclear magnetic resonance (FT-NMR) system engineered for routine and advanced solution- and solid-state spectroscopic analysis. Operating at a proton resonance frequency of 400 MHz, the system integrates Bruker’s proprietary Ascend magnet technology with the AVANCE NEO digital console platform and TopSpin 4.x software suite to deliver robust spectral resolution, exceptional signal-to-noise ratio, and long-term field stability. The Ultrashield design significantly reduces stray magnetic fields—enabling safe installation in space-constrained laboratories, multi-instrument facilities, or urban academic buildings without requiring extensive magnetic shielding infrastructure. This instrument is optimized for quantitative structural elucidation, dynamic process monitoring, and molecular interaction studies across chemistry, pharmaceuticals, materials science, and life sciences.

Key Features

• 400 MHz superconducting magnet with integrated Ultrashield passive shielding, achieving <5 Gauss line at ≤1.5 m distance
• Ascend magnet architecture utilizing advanced NbTi superconducting wire and compact coil geometry for reduced footprint and lower helium boil-off rate
• AVANCE NEO digital NMR platform with embedded acquisition server, FPGA-based pulse generation, and real-time data streaming capabilities
• TopSpin 4.2+ software environment supporting automated shimming, lock optimization, parameter calibration, and batch processing workflows
• Compatibility with a broad range of Bruker probeheads—including BBFO SmartProbe, QCI CryoProbe, and solids MAS probes—for ¹H, ¹³C, ¹⁵N, ¹⁹F, ³¹P, and multinuclear experiments
• Integrated SampleJet autosampler supporting up to 60 samples per run with temperature control (−10 °C to +120 °C), barcoded sample tracking, and GLP-compliant audit trails
• Electromagnetic disturbance suppression (EDS) system certified for operation in electrically noisy environments and adjacent to MRI or mass spectrometry facilities

Sample Compatibility & Compliance

The Ultrashield 400 Plus accommodates diverse sample formats including standard 5 mm NMR tubes, capillary inserts, microtubes (1.7 mm), and MAS rotors (2.5–4 mm) for solids. It supports both natural-abundance and isotopically enriched samples across organic molecules, peptides, polymers, metabolites, APIs, catalysts, and functional nanomaterials. The system complies with ISO/IEC 17025 requirements for testing laboratories and supports full GxP readiness through optional qualification packages—including IQ/OQ/PQ documentation, electronic signature validation, and 21 CFR Part 11–compliant audit logging via TopSpin’s eLabNotebook module. All firmware and software versions are traceable and version-controlled per GLP/GMP best practices.

Software & Data Management

Data acquisition, processing, and reporting are fully managed within the TopSpin 4.x ecosystem, which includes modules for automated peak picking (AICON), structure verification (CAMEO), quantitative analysis (qNMR), and multivariate statistical modeling (AMIX). For pharmaceutical applications, BiologicsHOS enables higher-order structure fingerprinting of monoclonal antibodies and other biologics using ¹H–¹⁵N HSQC and relaxation dispersion methods. CMC software facilitates regulatory submission-ready reports compliant with ICH Q5E and USP . Raw FID files are stored in vendor-neutral JCAMP-DX format; metadata—including pulse sequence, shimming history, lock status, and environmental logs—is embedded and exportable for LIMS integration.

Applications

• Pharmaceutical R&D: API identity confirmation, impurity profiling, polymorph characterization (via ¹³C CP-MAS), forced degradation studies, and potency determination using PotencyMR
• Metabolomics: Untargeted and targeted profiling of biofluids, tissue extracts, and cell lysates using ¹H NMR with Chenomx or BATMAN-based quantification
• Materials Science: Structural analysis of MOFs, battery electrolytes, polymer chain dynamics, crosslink density mapping, and surface functionalization verification
• Chemical Catalysis: In situ reaction monitoring with InsightMR flow probe; active site probing in zeolites and heterogeneous catalysts via ²⁷Al, ²⁹Si, and ¹¹B solid-state NMR
• Structural Biology: Backbone assignment, ligand-binding affinity estimation (K_D), conformational exchange analysis, and intrinsically disordered protein (IDP) dynamics under native conditions

FAQ

Is this instrument suitable for regulated pharmaceutical QC environments?
Yes—the system can be qualified to meet GMP/GLP requirements with optional GxP Readiness Kit, including documented risk assessments, calibration records, and electronic audit trail configuration.
What maintenance support is included with the one-year warranty?
Coverage includes remote diagnostics, firmware updates, hardware fault correction, cryogen level monitoring, and annual magnet shimming verification by certified Bruker field engineers.
Can the system be upgraded to higher field strength in the future?
No—magnet field strength is fixed at 400 MHz; however, the AVANCE NEO console and probe portfolio support seamless integration of newer accessories, including cryoprobes and automation modules.
Does the system include training for new operators?
Standard commissioning includes two days of on-site operator training covering safety protocols, daily startup/shutdown, basic ¹H/¹³C experiments, and TopSpin navigation.
Are original calibration standards and reference spectra provided?
Yes—factory-installed reference compounds (e.g., 0.1% ethylbenzene in CDCl₃, KBr for solids) and validated pulse sequences for ASTM D7260 and USP are preloaded and verified during installation.