Solid-State NMR Spectroscopy Guide for Materials Analysis
Solid state Nuclear Magnetic Resonance (NMR) spectroscopy enables molecular level analysis of solid polymers. Using magnetic resonance of certain magnetic nuclei with an applied electromagnetic (EM) wave, NMR can identify and quantify the Hydrogen, Carbon and other elements along with associated functional groups. Solid state NMR spectroscopy of polymers is industrially significant, as most applications of polymers are in the solid state.
TRUSTED BY
- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Solid-State NMR Spectroscopy Overview
Solid-state nuclear magnetic resonance (NMR) spectroscopy is an analytical technique used to determine the atomic-level structure, composition, and dynamics of solid materials. It measures the interaction of nuclear spins with an external magnetic field to provide detailed information about the chemical environment of atoms.
Unlike solution-state NMR, solid-state NMR analyzes materials in their native solid form, including crystalline, amorphous, and semi-solid systems. Advanced techniques such as magic-angle spinning (MAS) are used to improve spectral resolution by averaging out anisotropic interactions in solids.
Scope, Applications, and Benefits
Scope
Solid-state NMR spectroscopy evaluates:
- Atomic-level structure of solid materials
- Chemical composition and molecular arrangement
- Phase identification (crystalline/amorphous)
- Molecular dynamics and interactions
- Local chemical environment of nuclei
Applications
- Polymers and composite materials
- Pharmaceuticals and drug formulations
- Catalysts and inorganic materials
- Battery and energy materials
- Biomaterials and proteins
Benefits
- Provides detailed structural information at the atomic level
- Works on non-soluble and complex materials
- Enables analysis of amorphous and crystalline phases
- Non-destructive analytical technique
- Supports advanced material research and development
Solid-State NMR Test Process
Sample Preparation
Solid sample is packed into a rotor without dissolution.
1Magnetic Field Exposure
Sample is placed in a strong magnetic field to align nuclear spins.
2RF Excitation
Radiofrequency pulses excite nuclei to produce resonance signals.
3Data Analysis
Spectra are analyzed to determine chemical structure and interactions.
4Solid-State NMR Technical Specifications
| Parameter | Details |
|---|---|
| Test Principle | Nuclear spin resonance in magnetic field |
| Magnetic Field Strength | ~300 MHz to 900 MHz spectrometers |
| Technique | Magic Angle Spinning (MAS) (~1–130 kHz) |
| Sample Type | Solids, powders, semi-solids |
| Nuclei Observed | ¹H, ¹³C, ³¹P, ²⁹Si, etc. |
| Measured Outputs | Chemical shifts, coupling interactions |
Instrumentation Used for Testing
- Solid-state NMR spectrometer
- Superconducting magnet system
- MAS probe and rotor system
- Radiofrequency (RF) transmitter and receiver
- Temperature control system
- Data acquisition and processing software
Results and Deliverables
- NMR spectra (chemical shift vs intensity)
- Structural and molecular information
- Phase identification (crystalline/amorphous)
- Chemical environment analysis
- Material comparison and characterization
- Test report
Partnering with Infinita Lab for Optimal Results
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Looking for a trusted partner to achieve your research goals? Schedule a meeting with us, send us a request, or call us at (888) 878-3090 to learn more about our services and how we can support you. Request a Quote
Frequently Asked Questions
Solid-state NMR spectroscopy is a technique used to analyze the structure and composition of solid materials by studying nuclear spin interactions in a magnetic field, providing detailed atomic-level information about materials.
Solid-state NMR analyzes materials in solid form without dissolution, while solution NMR requires samples to be dissolved. Solid-state spectra are broader due to restricted molecular motion but provide structural insights for insoluble materials.
Magic angle spinning is a technique where the sample is spun at ~54.7° relative to the magnetic field to reduce spectral broadening and improve resolution in solid-state NMR measurements.
Materials such as polymers, pharmaceuticals, catalysts, ceramics, biomolecules, and battery materials can be analyzed, especially when they are insoluble or exist in solid or semi-solid states.
It provides detailed structural and molecular information for materials that cannot be analyzed using conventional techniques, supporting research, quality control, and development of advanced materials across multiple industries.
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