NMR probe

摘要

An NMR probe has a sample tube insertion port for introducing and withdrawing the sample tube into and from the probe, a sample tube support providing support of the sample tube during NMR measurements, a tubular sample tube passage connecting together the sample tube insertion port and the sample tube support and capable of transporting the sample tube between them, and a gas stream generator for producing a gas stream in the sample tube passage to move the sample tube between the sample tube insertion port and the tube support. The gas stream generator is mounted at an intermediate (non-end) position in the sample tube passage.

主权项

1. An NMR probe for use with a sample tube which can be introduced into and withdrawn from the probe while the probe is kept mounted in a magnetic field generator, said NMR probe comprising:
a sample tube insertion port through which the sample tube is inserted into and withdrawn from the NMR probe; a sample tube support that supports the sample tube during NMR measurements; a tubular sample tube passage connecting together the sample tube insertion port and the sample tube support and permitting the sample tube to be conveyed therebetween; a gas stream generator for producing a gas stream in the sample tube passage to convey the sample tube between the sample tube support and the sample tube insertion port, the gas stream generator being mounted at an intermediate position in the sample tube passage, wherein said gas stream generator has means for ejecting gas into said tubular passage directed toward the sample tube insertion port from a gas port at an intermediate position in the sample tube passage and having an inside diameter smaller than the inside diameter of the sample tube passage.