Welcome to Nanalysis’ benchtop NMR Blog
We love benchtop NMR! In this blog section, you will find all things benchtop NMR. Please contact us if you would like to discuss about your project.
Category
NMR Topics
- 100 MHz NMR
- 11B NMR
- 13C NMR
- 19F NMR
- 19F NMR Spectroscopy
- 31P NMR
- 3H NMR
- Agrochemicals
- Applications
- Batteries
- Biopolymers
- Botanicals
- COSY
- CPMG
- Cannabis
- Chemical Analysis
- Cosmetics
- DEPT
- Dithiazine
- Drug Analysis
- Dyes
- Edible Oils
- Educational NMR
- Energy
- Exchangeable Protons
- Exchangeable protons
- Flavor and Fragrances
- Flow NMR
- Fluorine-19 NMR
- Food Science
- Food and Beverage
- Forensics
- Forestry
- HMBC
- HSQC
- Hands-on Learning
- Hydrogen sulfide
- Hydroxyl value
- Hyphenated NMR
- Illicit Drugs
- Industrial Applications
- Inorganic Chemistry
- Interpretation of NMR
- Interpretation of NMR Spectra
- Inversion-Recovery
- Keto-Enol Tautomerism
- LF vs. HF NMR
- Lignin Analysis
- Literature
- Literature using Nanalysis benchtop NMR
Part 1 - T1 relaxation: definition, measurement and practical implications!
Nuclear Magnetic Resonance spectroscopy is based on the idea that some nuclei can behave as little magnetic bars (I spin number ≠ 0). In the presence of a magnetic field (B0) the nuclear spins feel a small torque for or against the B0 axis, which results in a net magnetization along the B0 direction. Benchtop NMR 1-855-NMREADY (667-3239) toll-free in the US and Canada.
NOESY: the experiment for when you just need to know more, particularly the 1H-1H spatial proximity
Given the superior resolution of our 100 MHz instrument, we can perform structure elucidation on increasingly large molecules. As molecules get more complex, as do the suite of experiments that can be used to…
DEPT: A tool for 13C peak assignments
Distortionless Enhancement by Polarization Transfer (DEPT) is a double resonance pulse program that transfers polarization from an excited nucleus to another – most commonly 1H → 13C. This results in a sensitivity enhancement relative to the standard decoupled 1D carbon spectra (13C), which benefits only from the small Nuclear Overhauser Effect (NOE) enhancements.
Part 1 - T1 relaxation: definition, measurement and practical implications!
Nuclear Magnetic Resonance spectroscopy is based on the idea that some nuclei can behave as little magnetic bars (I spin number ≠ 0). In the presence of a magnetic field (B0) the nuclear spins feel a small torque for or against the B0 axis, which results in a net magnetization along the B0 direction. Benchtop NMR 1-855-NMREADY (667-3239) toll-free in the US and Canada.
DEPT: A tool for 13C peak assignments
Distortionless Enhancement by Polarization Transfer (DEPT) is a double resonance pulse program that transfers polarization from an excited nucleus to another – most commonly 1H → 13C. This results in a sensitivity enhancement relative to the standard decoupled 1D carbon spectra (13C), which benefits only from the small Nuclear Overhauser Effect (NOE) enhancements.
Roses are red, violets are blue, hey look this COSY is cool
As Valentine’s Day approaches, I decided to analyze the 1H nuclear magnetic resonance (NMR) spectrum of the main aromatic component of roses, carnations, violets, lilies and chrysanthemums, which were b-damascenone, eugenol, b-ionone, linalool and a-pinene, respectively.
NOESY: the experiment for when you just need to know more, particularly the 1H-1H spatial proximity
Given the superior resolution of our 100 MHz instrument, we can perform structure elucidation on increasingly large molecules. As molecules get more complex, as do the suite of experiments that can be used to…
Analysis of Brucine at 100 MHz – Getting COSY with Correlations
Brucine is a structurally complex molecule, commonly found in the bark and seeds of the Strychnos nux-vomica tree, which is native to India and southeast Asia.1 A toxic alkaloid, brucine is typically present alongside strychnine, a structurally almost identical molecule that is more toxic than brucine.
Part 2 – T2 relaxation: definition, measurement and practical implications!
In NMR, the net magnetization is detected in the xy plane, giving rise to the FID (Free Induction Decay). The process by which the magnetization in the xy plane decays away, over time, to its equilibrium value of zero, is known as T2 relaxation, transversal relaxation, relaxation on the xy plane, or spin-spin relaxation.