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NMR directly observes atoms (nuclear spins) of molecules when detailed molecular information is essential. When placed in an external magnetic field and subjected to radiofrequency (RF) radiation, the nuclei absorb energy and undergo a transition between energy states. The absorbed energy is then released as RF signals when the nuclei return to their original states. By analysing these signals, information about the sample's composition, structure, and dynamics can be obtained.
NMR provides both qualitative and quantitative data making it a key technique, of which both NMR and Quantitative NMR (qNMR) are available at RSSL. NMR analysis is a powerful spectroscopic technique suitable for application to a wide range of matrices with a large range of applications within the food and pharmaceutical industry.
UV/Vis spectroscopy is a technique used to determine the concentration of a substance in a sample. In UV/Vis spectroscopy, a sample is exposed to ultraviolet or visible radiation, and the resulting absorption spectrum is measured. This absorption spectrum provides information about the concentration of the substance in the sample, making it a versatile tool for analysing various aspects of food quality safety and composition as well as playing a vital role in drug development, manufacturing and quality assurance.
FT-IR spectroscopy is a technique used to determine the functional groups and molecular structure of compounds. In FT-IR spectroscopy, a sample is exposed to infrared radiation, and the resulting absorption spectrum is measured. This absorption spectrum provides information about the vibrations of the atoms in the molecule, which can be used to determine the functional groups and molecular structure of the compound.