Abstract: Nuclear magnetic resonance (NMR) is, from chemical point of view, the most important spectral technique usable for determination of chemical constitutions mainly in solutions where so called high resolution NMR spectra can be measured. Contrary to this advantage, there are two principal disadvantages of this technique: low sensitivity and overlap of spectra when mixtures are measured providing sum of spectra (envelope) with very limited chance of their separation. These two effects complicate the utilisation of NMR in environmental and biomedical applications. Regardless of these facts, the number of applications in these fields has been increasing considerably and approaches concerning sensitivity enhancement and other improvements will be discussed.

Keywords: NMR, environmental research, biomedical research