A low cost, portable NMR probe for high pressure, MR relaxometry

Julia D Kerr; Bruce J Balcom; Michael J McCarthy; Matthew P Augustine

doi:10.1016/j.jmr.2019.05.001

A low cost, portable NMR probe for high pressure, MR relaxometry

J Magn Reson. 2019 Jul:304:35-41. doi: 10.1016/j.jmr.2019.05.001. Epub 2019 May 2.

Authors

Julia D Kerr¹, Bruce J Balcom², Michael J McCarthy¹, Matthew P Augustine³

Affiliations

¹ Department of Chemistry, 69 Chemistry Building, University of California, Davis, Davis, CA 95616 USA.
² Department of Physics, UNB MRI Centre, University of New Brunswick, Fredericton, New Brunswick, Canada.
³ Department of Chemistry, 69 Chemistry Building, University of California, Davis, Davis, CA 95616 USA. Electronic address: maugust@ucdavis.edu.

PMID: 31077930
DOI: 10.1016/j.jmr.2019.05.001

Abstract

A low cost, portable, high volume, stainless steel pressure reactor is modified to easily perform magnetic resonance relaxometry at industrially relevant pressures. Unlike existing pressurization strategies common to nuclear magnetic resonance (NMR) spectroscopy, this approach is amenable to realistic samples that feature heterogeneity and have traditionally escaped NMR study at pressure. This pressure reactor/NMR probe combination is easily accommodated by most single-sided and other low magnetic field permanent magnet assemblies. The performance of the probe is demonstrated by accomplishing NMR relaxometry on polydimethylsiloxane at different pressures with two types of unilateral magnets.

Keywords: High pressure; Portable NMR; Relaxometry; Single sided magnets.

Publication types

Research Support, Non-U.S. Gov't