Browse Prior Art Database

NMR Spectrometer Sample Tube Support

IP.com Disclosure Number: IPCOM000046261D
Original Publication Date: 1983-Jun-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Anello, JP: AUTHOR [+2]

Abstract

An NMR (nuclear magnetic resonance) spectrometer is modified, as shown in the drawings, to use relatively short sample tubes for inserting the sample into the spectrometer for analysis.

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NMR Spectrometer Sample Tube Support

An NMR (nuclear magnetic resonance) spectrometer is modified, as shown in the drawings, to use relatively short sample tubes for inserting the sample into the spectrometer for analysis.

As illustrated, top cover 1 is provided with a cut-out 2 to receive a cup- shaped member 3. The interior of member 3 is of such a size that an operator's hand can readily insert and withdraw a capped sample tube 4. A permanent magnet 5 underlies member 3 and is provided with the customary air gap into which a sample in tube 4 is inserted. A probe 6 is also supported in the gap concentric to tube 4. A stop screw 7 abuts the bottom of tube 4 and provides adjustment to place or locate the sample at the desired portion of the gap. A microswitch 8 has a lever 9 or actuating arm disposed adjacent the path of travel of tube 4 and is actuated upon insertion of tube 4 to provide a signal indicating such fact. Member 3 rests on a heat shield l0. Connecting members 11 further connect shield l0 to the original heat shield 12, which further forms an insulating barrier around the magnet.

The principal advantage of such design is that tube 4 may be of either glass or plastic and of a length of about three inches. Such tubes are relatively cheap and available. Another advantage of the design is that the bottom of member 3 is relatively flat, and, should any spillage occur during handling of the sample, the spillage would be collected on the bottom surface and...