Patent ID: 7463032

Claim:
An NMR spectrometer having a magnet for producing a static magnetic field for NMR measurements, a sample tube placed within the static magnetic field produced by the magnet and holding a deuterated solvent therein, and a microchip reactor inserted inside the sample tube, wherein said microchip reactor includes an introduction portion for introducing plural reagents from plural channels and a reaction portion disconnectably connected with the introduction portion and acting to cause a reagent or a reaction liquid introduced from the introduction portion to mix and react with another reagent, wherein said introduction portion has an introduction channel for introducing a reagent introduced from the outside into the reaction portion and a discharge channel for permitting the reaction liquid discharged from the reaction portion to be discharged to the outside, and wherein said reaction portion has (i) a reaction channel in communication with the introduction channel and acting to cause plural reagents pumped from the introduction channel to be mixed and reacted with each other and (ii) a discharge passage for connecting the reaction channel and the discharge channel with each other to return the reaction liquid produced in the reaction channel to the introduction portion.