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.

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.

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…

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.

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.

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.

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.

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…

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.

A key step towards elucidating structures with NMR spectroscopy is the assignment of signals to specific groups within the molecule being analyzed.

Read more on the Nanalysis benchtop NMR (Nuclear Magnetic Resonance) blog. Read more.