NMRystävällinen

NMRystävällinen is a Finnish term that translates to "NMR-friendly" in English. It describes materials, chemicals, or experimental setups that are suitable for use in Nuclear Magnetic Resonance (NMR) spectroscopy without causing significant interference or degradation of the NMR signal. This designation is important because many substances and conditions can negatively impact the quality and interpretability of NMR spectra.

Materials considered NMRystävällinen typically do not contain nuclei with strong magnetic moments that would create unwanted magnetic fields, thus obscuring the signals of the sample. For instance, common laboratory glassware made of borosilicate glass is generally NMRystävällinen, whereas certain metal-containing containers or certain plastics might not be. Similarly, solvents are a crucial component of NMR experiments. Deuterated solvents are widely used because deuterium (²H) has a different NMR frequency than hydrogen (¹H), allowing the solvent signal to be easily distinguished from or suppressed in relation to the sample's ¹H signals. These deuterated solvents are considered NMRystävällinen.

In the context of experimental techniques, NMRystävällinen approaches aim to minimize factors that can broaden spectral lines, reduce signal intensity, or introduce artifacts. This can include careful control of temperature, exclusion of paramagnetic impurities, and the use of appropriate sample preparation methods. The goal of being NMRystävällinen is to ensure that the NMR experiment yields clear, high-resolution data, facilitating accurate structural elucidation and quantitative analysis of chemical compounds.