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
- 13C NMR
- 19F NMR
- 19F NMR Spectroscopy
- 31P NMR
- 3H NMR
- Agrochemicals
- Applications
- Biopolymers
- Botanicals
- COSY
- CPMG
- Cannabis
- Chemical Analysis
- Cosmetics
- DEPT
- Drug Analysis
- 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
- Hydroxyl value
- Hyphenated NMR
- Illicit Drugs
- Industrial Applications
- Interpretation of NMR
- Interpretation of NMR Spectra
- Inversion-Recovery
- Keto-Enol Tautomerism
- LF vs. HF NMR
- Lignin Analysis
- Literature
- Literature using Nanalysis benchtop NMR
- Mining
- NMR Applications
- NMR Instrumentation
- NMR Labelling
- NMR Pulse Programs
- NMR Signal Processing
What to expect from the tert-butanol 1D and 2D 13C NMR analysis?
Proton and carbon NMR analyses are routinely used in organic laboratories. In proton, 1H-1H coupling pattern is well exploited, and 1H-13C couplings as referred to as the carbon satellites. However, when acquiring carbon data, proton decoupling is applied most of the time and consequently it is not common to evaluate 1H-13C couplings in routine carbon analysis. This blog discusses the 1H-13C coupling in tert-butanol through 1D and 2D data, highlighting the key info. Read more.
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.
Spin-Spin Coupling – Beyond Multiplicity
Nuclear magnetic resonance (NMR) is a critical tool for scientists undertaking structural elucidation or quantification of species in mixtures. Along with single crystal X-ray diffraction (SCXRD), no other technique provides as much information about a molecule’s conformation as NMR. This approach provides information about molecules in solution. Benchtop NMR 1-855-NMREADY (667-3239) toll-free in the US and Canada
Benchtop NMR Data and Quantum Mechanical Spectral Analysis
It is well known that signal dispersion decreases as the NMR field strength is reduced. For example, at 400 MHz, 1 ppm spans 400 Hz while at 60 MHz, 1 ppm spans 60 Hz.
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.
To apodize or not to apodize - the age old question
Are you familiar with the apodization tool in Mnova? Apodization (also referred to as Weighting or Windowing) literally translates to ‘cutting off the feet’ from the original Greek. In this case…
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.
Two solvents, two different spectra - Aromatic Solvent Induced Shifts
In my opinion, one of the most helpful papers[1] in the field of NMR spectroscopy in Organic Chemistry consists of ‘just’ two tables. In these, the chemical shifts (1H and 13C) of as many as forty-two common impurities in twelve different deuterated solvents are listed. This is gold! Why?
Your Nanalysis 60 Order!
‘The spectra were analyzed according to first order’. Does this sound familiar to you? Most of the supporting information documents out there contain this sentence. You find yourself asking ‘why does nobody care about second order effects?’, then check out this high-order blog entry on the topic.
Spin-Spin Coupling – Beyond Multiplicity
Nuclear magnetic resonance (NMR) is a critical tool for scientists undertaking structural elucidation or quantification of species in mixtures. Along with single crystal X-ray diffraction (SCXRD), no other technique provides as much information about a molecule’s conformation as NMR. This approach provides information about molecules in solution. Benchtop NMR 1-855-NMREADY (667-3239) toll-free in the US and Canada