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Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy, is a research technique that exploits the magnetic properties of certain atomic nuclei.It determines the physical and chemical properties of atoms or the molecules in which they are contained.owever a frequency scale is commonly used to designate the NMR signals, even though the spectrometer may operate by sweeping the magnetic field, and thus the 42 ppm is 4200 Hz for a 100 MHz reference frequency (rf).
Nuclear Magnetic Resonance Spectroscopy (NMR) is closely related to Magnetic Resonance Imaging (MRI). Both techniques use the magnetic properties of atomic nuclei to get information about a sample. MRI measures the amount of a given nucleus at a given place (spatial distribution).uclear Magnetic Resonance Spectroscopy (NMR) is closely related to Magnetic Resonance Imaging (MRI). Both techniques use the magnetic properties of atomic nuclei to get information about a sample. MRI measures the amount of a given nucleus at a given place (spatial distribution).