Nuclear magnetic resonance (NMR) describes the adsorption of electromagnetic energy by atom nuclei. Historically, the scientific community has used this term to describe a family of analytical techniques (high resolution NMR, low-field NMR, magnetic resonance imaging (MRI), etc.). All these methods have made it possible to quantify resonance frequencies and parameters of the NMR adsorption process. As the adsorption efficiency of an atom is dependent on its atomic structure and atom environment, the use of NMR is considered a powerful tool for exploring structural features of matter and for monitoring inter and intra-molecular interactions. In particular, in our laboratory, the pulsed field gradient-NMR (PFG-NMR) is used as a complementary method for studying the molecular mobility (diffusion) of polymer specimens and solvents. Since the experimental time windows of PFG NMR vary from a few milliseconds up to approximately a few 100 ms, neutron spin echo experiments can therefore be supplemented on an extended time scale.
Bruker minispec mq20 system with 33mm Airgap Magnet
- temperature range from -100°C to 200°C
- strength of magnetic field gradient 3-4 T/m
- NMR probe has a short dead time for the investigation of solid signal fractions (about 10 us)