Patent ID: 7026817

Claim:
A nuclear magnetic resonance spectrometer for a liquid-solution which comprises: a superconductive magnet including paired split magnets for generating a magnetic field, a low temperature container for cooling said superconductive magnet, said low temperature container having a first space perpendicular to said magnetic field generated by said superconductive magnet and a second space along said magnetic field generated by said superconductive magnet, and a reception coil in which a sample dissolved in said liquid-solution is charged in a sample tube, wherein a static magnetic field generated by said superconductive magnet is 11 T or more, a variation of a proton nuclear magnetic resonance frequency due to a variation of said static magnetic field is 1.0 Hz/hour or less, said sample is inserted in a magnetic field center from said first space, and said reception coil is a solenoid coil inserted in said magnetic field center from said first space.