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Title: High-temperature NMR MAS probe with optimized temperature gradient across sample rotor

Abstract

A rotor housing assembly for NMR spectroscopy. An elongate rotor has a distal drive end, a proximal end and an internal sample space positioned along its length between the drive and proximal ends. The rotor is driveable about a rotation axis by a drive gas flow. A rotor housing has an interior space in which the rotor is at least partially received. At least one first heated gas flow inlet is positioned opposite the internal sample space, through which a first heated gas flow is controllably flowable into the interior space to heat it and the rotor. At least a pair of spaced apart second heated gas flow outlets are axially spaced from the first heated gas flow inlet to controllably convey a second heated gas flow to heat distal and proximal areas of the sample space to minimize a temperature gradient extending axially within the sample space.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1859915
Patent Number(s):
11137458
Application Number:
16/888,374
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/29/2020
Country of Publication:
United States
Language:
English

Citation Formats

Mehta, Hardeep S., Sears, Jr., Jesse A., Walter, Eric D., Washton, Nancy M., Mueller, Karl T., and Chen, Ying. High-temperature NMR MAS probe with optimized temperature gradient across sample rotor. United States: N. p., 2021. Web.
Mehta, Hardeep S., Sears, Jr., Jesse A., Walter, Eric D., Washton, Nancy M., Mueller, Karl T., & Chen, Ying. High-temperature NMR MAS probe with optimized temperature gradient across sample rotor. United States.
Mehta, Hardeep S., Sears, Jr., Jesse A., Walter, Eric D., Washton, Nancy M., Mueller, Karl T., and Chen, Ying. Tue . "High-temperature NMR MAS probe with optimized temperature gradient across sample rotor". United States. https://www.osti.gov/servlets/purl/1859915.
@article{osti_1859915,
title = {High-temperature NMR MAS probe with optimized temperature gradient across sample rotor},
author = {Mehta, Hardeep S. and Sears, Jr., Jesse A. and Walter, Eric D. and Washton, Nancy M. and Mueller, Karl T. and Chen, Ying},
abstractNote = {A rotor housing assembly for NMR spectroscopy. An elongate rotor has a distal drive end, a proximal end and an internal sample space positioned along its length between the drive and proximal ends. The rotor is driveable about a rotation axis by a drive gas flow. A rotor housing has an interior space in which the rotor is at least partially received. At least one first heated gas flow inlet is positioned opposite the internal sample space, through which a first heated gas flow is controllably flowable into the interior space to heat it and the rotor. At least a pair of spaced apart second heated gas flow outlets are axially spaced from the first heated gas flow inlet to controllably convey a second heated gas flow to heat distal and proximal areas of the sample space to minimize a temperature gradient extending axially within the sample space.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {10}
}

Works referenced in this record:

Temperature-control device for samples
patent, March 1993


High temperature NMR sample spinner
patent, April 1993


NMR sample holder
patent, May 1996


High speed spinner for NMR spectrometer
patent, April 1988


NMR spectroscopy up to 35.2 T using a series-connected hybrid magnet
journal, November 2017


Devices and process for high-pressure magic angle spinning nuclear magnetic resonance
patent, April 2014


Temperature control device for an NMR sample tube
patent-application, November 2011


Method and apparatus for high speed magic angle spinning
patent, April 1985


Axially-sealed NMR sample tube assemblies
patent, November 2004