Nuclear Magnetic Resonance (NMR) Analysis Nuclear Magnetic Resonance (NMR) is a well established laboratory analysis technology. NMR technology uses a permanent magnet and electromagnetic sensor to quantitatively analyze a wide range of physical, chemical or biological properties.
The molecules of the sample “line up” with the magnetic field direction. Once aligned, they are pulsed with radio frequency waves to move them off their aligned axis. The amount of the deflection and the time to return to alignment are determined by the sample's molecular structure. Since all nuclei are spinning, the resulting realignment of the molecules in the magnetic field sends an RF signal back. This signal is transformed into a spectrum showing chemical species and their concentrations. Multiple pulses are averaged, and the analysis is available within minutes.	Chemical shifts
In addition to chemical composition information, physical properties can be correlated to the spectrum. Since this is not an optical technology, sample temperature fluctuations and optically dense samples do not affect the analytical results. NMR's non-intrusive nature facilitates the analysis of dark and opaque liquid streams that are beyond the reach of optical measurement, while keeping the sampling procedure extremely simple.
Values for multiple control parameters are readily available from a single measurement. Spectral resolution and linear response yield extremely robust calibration-models, which allow rapid online implementation at low costs of ownership.	Flow-through sampling