NMR measurement apparatus with flow-through probehead
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United States of America Patent
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Jul 1, 2014
Grant Date -
Nov 24, 2011
app pub date -
Nov 27, 2009
filing date -
Nov 27, 2008
priority date (Note) -
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Abstract
The invention relates to a device (1, 21, 31, 41, 64) for the preparation and measurement of a nuclear spin resonance (NMR) measurement sample (10), including—a flow-through NMR probehead (2), with a first tube (3) and a second tube (14) each for the supply and removal of a liquid NMR measurement sample (10),—at least one chamber (4, 22, 32) which is connected to one of the tubes (3, 14),—a sample inlet (5) for introducing the liquid measurement sample (10) into the device (1, 21, 31, 41, 64), wherein at least one chamber (4, 22, 32) has at least one connection for increasing (9, 24, 25, 42, 43, 46, 47) and releasing (8, 23, 27, 48a, 48b) the gas pressure, and in which at least one chamber (4, 22, 32) comprises means for mixing the liquid measurement sample (10) contained in the chamber (4, 22, 32) with a gas With the inventive device it is possible to reduce the measurement sample consumption when doing an NMR spectroscopic measurement on liquid measurement samples to which spin order can be catalytically transferred.
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