Abstract:

The technology of HPLC-NMR can act as an import action in the structure determi n ation of small amount mixtures difficult to separate. This technology can decrea se the difficulty in structure determination of the mixtures, improving the effi ciency, and worthy of being probed further during the work of separation and det ermination of small amount natural products. together with some other methods, s uch as Nano probe technology, relatively veracious ordinary NMR spectral excludi ng the disturbing impurity, the structures can be confirmed. this paper will giv e a description of this method that analyzes a few mixtures from natural product s.

Key words: Liquid chromatography-nuclear magnetic resonance, NMR spctroscopy, Nano probe, Ampelopsis sinica, Gnetum pendulum C.Y.Cheng, Groniothalamus Cheliensis