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What requirements does the Low-field NMR have for samples?

What requirements does the Low-field NMR have for samples?


The NMR instruments require the samples have no magnetism, and the MRI instruments require the samples do not contain metal materials in addition. Low field NMR have no requirement at samples’ shape, liquid state, powder state, solid state, semiliquid state all can be tested.

When operating, we should take attention to the followings in samples treating:

1.Tube ektexine must be clear, don’t touch the tube bottom.

2.When quota test, the sample must be in the effective measuring extent of tube bottom, it can not be in the tube paries.

3.Wrapper of samples can not have NMR signals or infect the NMR signals.

4.Contrast samples or parallel samples should be at the same temperature.

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