NMR

Q: How is NMR different from FTIR?

FTIR identifies functional groups, while NMR provides detailed molecular structure and connectivity information.

What Is NMR?

NMR works by placing a sample in a strong magnetic field and applying radiofrequency signals to atomic nuclei such as hydrogen (¹H) and carbon (¹³C). The resulting spectra reveal how atoms are connected within a molecule and the chemical environment surrounding them.

Unlike many analytical techniques that provide indirect fingerprints, NMR delivers direct structural information.

What NMR Can Determine

NMR can provide insight into:

Molecular structure and connectivity
Functional groups and chemical environment
Chemical identity confirmation
Polymer backbone and side-chain structure
Copolymer composition
Chemical purity and consistency
Structural differences between similar materials

Both qualitative and quantitative information can be obtained, depending on the application.

Why Use NMR?

NMR is selected when a detailed understanding of chemical structure is required. It helps answer questions such as:

What is the exact chemical structure of this material?
Are two materials chemically identical or different?
What functional groups or side chains are present?
Has chemical degradation or modification occurred?
What components are present in a formulation?

NMR is one of the most reliable techniques for chemical identity confirmation and structural verification.

Typical Application Scenarios

Material Identification & Verification

Confirmation of chemical identity
Differentiation of similar polymers or compounds
Verification of supplier-provided material information

Deformulation & Reverse Engineering

Identification of formulation components
Structural analysis of additives, resins, or binders
Competitive product comparison

Polymers & Advanced Materials

Polymer backbone and copolymer analysis
Evaluation of chemical modifications
Comparison of polymer grades or processing effects

Impurity & Degradation Analysis

Detection of unexpected chemical species
Identification of degradation or reaction products
Stability and aging studies

Failure Analysis

Investigation of chemical changes in failed materials
Comparison of “good vs. failed” samples
Correlation of chemical structure with performance loss

Sample Types

NMR can be applied to:

organic compounds and intermediates
polymers and resins
additives and formulation components
solutions and solvent extracts

Most analyses are performed in solution; Xinbodi evaluates solubility and sample condition before testing.

What You Will Receive

Each NMR project is delivered with a clear, structured report designed for technical and business decisions. A typical deliverable includes:

project objective and sample description
NMR experiment type and conditions
spectra with peak assignments
structural interpretation and conclusions
comparison between samples or formulations
assessment of chemical purity or differences
recommendations for follow-up analysis if required

Why Choose Xinbodi for NMR Analysis?

Strong expertise in chemical structure interpretation
Experience with polymers, additives, and complex formulations
Practical, application-driven conclusions
Integration with complementary techniques (FTIR, GC-MS, LC-MS)
Support for R&D, QC, deformulation, and failure investigations
Strict confidentiality for proprietary materials and formulations

NMR