Oxford Instruments X-Pulse 90 Benchtop Nuclear Magnetic Resonance Spectrometer
| Brand | Oxford Instruments |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | X-Pulse 90 |
| Instrument Type | High-Field Benchtop NMR Spectrometer |
| Sensitivity | 240:1 for 1% ethylbenzene |
| Resolution | < 0.35 Hz (50% peak height) / < 15 Hz (0.55% peak height) |
Overview
The Oxford Instruments X-Pulse 90 is a high-field, benchtop nuclear magnetic resonance (NMR) spectrometer engineered for precision quantitative and qualitative analysis in research and quality control laboratories. Operating at a nominal proton frequency of 90 MHz (corresponding to a static magnetic field strength of 2.1 Tesla), the X-Pulse 90 leverages permanent magnet technology to deliver enhanced spectral dispersion and improved signal-to-noise ratio (SNR) over its predecessor—up to 2× higher SNR and up to 4× faster data acquisition. This advancement enables robust detection and quantification of low-concentration analytes while maintaining high reproducibility across routine and advanced experiments. Unlike conventional high-field superconducting NMR systems, the X-Pulse 90 achieves field homogeneity and stability without cryogenic infrastructure, making it suitable for installation in standard laboratory environments with minimal footprint and operational overhead.
Key Features
- 90 MHz proton operating frequency (2.1 T permanent magnet) enabling superior chemical shift dispersion and resolution for complex mixture analysis
- Broadband multinuclear capability supporting routine observation of 1H, 13C, 19F, 31P, 7Li, 23Na, and other quadrupolar and spin-½ nuclei without hardware modification
- User-replaceable probe design allowing rapid interchange between high-sensitivity single-nucleus probes and broadband multi-nucleus configurations—minimizing downtime during maintenance or method switching
- Integrated temperature control module offering precise, stable sample temperature regulation from 0 °C to +60 °C—critical for kinetic studies, polymer relaxation analysis, and electrolyte characterization
- Optimized gradient coil architecture ensuring accurate diffusion coefficient measurement and reliable flow-compensated experiments, including continuous-flow NMR applications
- Modular expansion support for automated sample handling (X-Auto), real-time reaction monitoring, and GLP-compliant audit trail generation
Sample Compatibility & Compliance
The X-Pulse 90 accepts standard 5 mm outer diameter NMR tubes and accommodates both liquid and semi-solid samples across a wide range of viscosities and conductivities. Its probe design incorporates RF shielding and thermal management features compatible with routine QC testing of pharmaceutical intermediates, battery electrolytes, polymer solutions, and small-molecule APIs. The system supports compliance with ISO/IEC 17025 requirements for testing laboratories and includes configurable electronic records aligned with FDA 21 CFR Part 11 principles—including user authentication, electronic signatures, and immutable audit trails for instrument parameters, acquisition logs, and processing history.
Software & Data Management
Controlled via the proprietary X-Pulse Software Suite, the instrument provides intuitive pulse sequence selection, real-time spectrum preview, and automated shimming routines. Data export formats include Bruker TopSpin-compatible .fid and universal .jcamp-dx, facilitating integration with third-party processing tools such as MestReNova, ACD/Labs, and MATLAB-based custom analysis pipelines. The software architecture supports batch processing, statistical comparison of spectra sets, and customizable report templates compliant with internal SOPs and external regulatory submissions. Optional networked deployment enables centralized instrument monitoring and remote diagnostics through secure HTTPS-based interfaces.
Applications
- Battery R&D: Quantitative analysis of Li-ion electrolyte decomposition products, SEI layer composition, and ion solvation dynamics via 7Li and 19F NMR
- Pharmaceutical QC: Identity confirmation, assay determination, and residual solvent quantification per ICH Q2(R2) and USP <711> guidelines
- Polymers & Materials Science: Molecular weight estimation, tacticity assessment, and crosslink density evaluation using 1H and 13C CPMAS or solution-state methods
- Chemical Synthesis Monitoring: In-situ reaction progress tracking and intermediate identification under controlled temperature gradients
- Food & Agrochemical Analysis: Authenticity verification, adulterant screening, and metabolite profiling in complex matrices
FAQ
What is the magnetic field homogeneity specification for the X-Pulse 90?
The system maintains a typical linewidth of < 0.35 Hz at 50% peak height for chloroform-d in standard 5 mm tubes, measured after automated shimming.
Does the X-Pulse 90 require liquid nitrogen or helium cooling?
No—its permanent magnet design operates at ambient temperature without cryogens, eliminating recurring consumable costs and infrastructure dependencies.
Can the X-Pulse 90 be integrated into an automated laboratory workflow?
Yes—via optional X-Auto robotic sample changer and API-enabled software hooks, it supports unattended overnight runs and LIMS synchronization.
Is method validation support available for regulated environments?
Oxford Instruments provides IQ/OQ documentation packages and application notes aligned with ASTM E2821, ISO 17025, and USP <731> for NMR-based assays.
What training and service options are offered globally?
Comprehensive on-site installation, operator certification, and preventive maintenance contracts are available through Oxford Instruments’ certified service network across EMEA, APAC, and the Americas.
