Serving requests from our followers, we have created a list of selected peer-reviewed publications in which our Spinsolve benchtop NMR spectrometer is featured. Spinsolve is being used for research in topics such as online Reaction Monitoring, Hyperpolarisation, Ultrafast 2D NMR, Residual Dipolar Couplings and Process Control. Please have a look at Publications. This is a …
Part 3 discussed how a matched pair of positive/negative magnetic field gradient pulses can be used to encode spins for their displacement. Although this simple sequence has great value from an educational point of view, it is rarely used in practice due to several drawbacks. The delay time between the two gradient pulses can be …
Gradients in NMR Spectroscopy – Part 5: The Pulsed Gradient Spin Echo (PGSE) Experiment Read More »
Part 3 discussed how a matched pair of positive/negative magnetic field gradient pulses can be used to encode spins for their displacement. We can distinguish between two basic types of displacement: All spins are moving together with the same speed along the same direction. This leads to a phase shift in the signal. All spins …
Gradients in NMR Spectroscopy – Part 4: A short Intermezzo on Diffusion Read More »
When natural rubber (NR) latex is epoxydized, it is converted to a new plastic (Epoxydized Natural Rubber or ENR) with many favorable properties. Damping and anti-vibration characteristics are improved. ENR is oil resistant and has a better air impermeability i.e. better sealing properties. ENR or Epoxyprene is a speciality polymer produced from natural rubber latex, …
Part 2 of this series discussed how pulsed magnetic field gradients (PFGs) can be used to encode spins for their position, whilst still having the advantage of uniform field during signal acquisition.In this post we will see how pairs of pulsed gradients can encode for molecular displacement. Consider the situation where we apply a second …
In part 1 of this series we had a look at what magnetic field gradients (MFGs) are and learned that static gradients can be used to create a one-dimensional image of the sample. We also saw that the peaks broaden and consequently the chemical shift resolution is lost completely. It would be nice, for example …
Gradients in NMR Spectroscopy – Part 2: Pulsed Gradients Read More »
For high resolution NMR spectroscopy we aim to get the magnetic field as uniform as possible across the measurement volume. This manifests itself in narrow peaks in the spectrum and better spectral resolution. However, there are situations where field variations over the measurement volume (called Magnetic Field Gradients or MFG) can be beneficial. This blog …
Gradients in NMR Spectroscopy – Part 1: The Basics Read More »
NMR spectroscopy is an excellent technique for monitoring organic reactions due to its high degree of functional group specificity. This allows one to integrate over one or more sections of the spectrum to track the increase or decrease of the species of interest.
We have developed two documents which show how the Spinsolve benchtop NMR spectrometer can be used in Chemistry Education to introduce students to NMR. In these laboratories students measure the 1D proton NMR spectra of isomers of C4H8O2: ethyl acetate, butyric acid and isobutyric acid.
Rubber consists of long and flexible macromolecules, which are physically entangled. During processing, raw rubber is mixed with fillers and processing agents. The raw product is vulcanized at elevated temperature and pressure to form cross-links between the macromolecules. The cross-link density correlates with the transverse NMR relaxation time T2, which can be estimated with the …
Germany: +49 241 9278 7270
USA: +1 855 667 6835
New Zealand: +64 4 477 7096
