Introduction：

Nuclear magnetic resonance (NMR) spectrometry is basically another form of absorption spectrometry, akin to IR or UV

spectrometry. Under appropriate conditions in a magnetic field, a sample can absorb electromagnetic radiation in the radio

frequency (rf) region at frequencies governed by the characteristics of the sample. Absorption is a function of certain nuclei

in the molecule. A plot of the frequencies of the absorption peaks versus peak intensities constitutes an NMR spectrum.

Function（application）：

NMR spectroscopy is a powerful technology for structures elucidation of natural product,

medicine, organic compound, inorganic complex and polymer

Experimental Items：

1.One-dimensional：1H、13C、19F、31P、DEPT .....

2.Two-dimensional：gCOSY、NOESY、TOCSY、ROESY、HETCOR、LR- HETCOR、gHSQC、gHMBC .....

3.Variety Temp Experimets