The invention relates to a method and apparatus for analyzing a sample by MR spectroscopy, especially in a weak magnetic field.
The A method according to the invention for analyzing a sample, the addition of hyperpolarized medium to the sample, it is possible to determine its chemical shift. The degree of nuclear arrangement of the supercooling polarization (alignment) becomes large, the signal-noise ratio is improved in the measurement of the chemical shift. Thus, the sample is exposed to an alternating electromagnetic field and the static magnetic field Bs _0, magnetic resonance is measured. This hyperpolarization is sufficient to measure the chemical shift with a relatively weak static magnetic field. Weak magnetic field from the point of view of the present invention is a place have a weaker strength than 200G.
The weak magnetic field the meaning of the present invention is a place with the following strength 200G. For example, these are _B 0 = 0.001, it is very weak in the range of less than T = 10G.
The advantage of determining the chemical shift in weak fields, produced at relatively low cost suitable device is that it can be maintained.