Français
2. Scientific and technological aspects
The physical properties of the sodium nucleus ( 23 Na) allow it to be detected by NMR and, consequently, salt (NaCl) to be analyzed by NMR spectroscopy and imaging. When a salty sample is placed in an intense, static magnetic field, a macroscopic magnetization appears in the sample parallel to the field. This results from the distribution of all sodium nuclei between different energy levels at thermodynamic equilibrium.
by "set" we mean a very large number. For example, 1 liter of water at a concentration of 1 M NaCl contains ~ 6 · 10 23 sodium nuclei.
An NMR experiment ( http://www.cis.rit.edu/htbooks/...
The Ultimate Scientific and Technical Reference
This article is included in
Agrifood industry/sector ?
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Scientific and technological aspects
Applications
Bibliography
Organizations
French Food Safety Agency (AFSSA)
French National Institute for Agronomic Research (INRA)
The Ultimate Scientific and Technical Reference
