Patent ID: 10782369

Abstract:
Transport apparatus pneumatically conveying NMR test samples (2) from or to an NMR spectrometer (1) through a tubular transport channel (3) includes a device (4) generating positive pressure in the end of the transport channel that is remote from the spectrometer. The transport channel has a tube system which has a gas-tight outer tube (5) having an outer diameter Da and an inner diameter da and an inner tube (6), arranged coaxially with respect to the outer tube, having an outer diameter Di<da and an inner diameter di. The inner diameter di of the inner tube is greater than or equal to the outer diameter DP of the test samples, and the inner tube includes mutually spaced cross-holes (7) designed as through-holes. This provides accurate current position determinations for the sample in the transport channel, and reduced risk of damaging the sample during transport.