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Multinuclear magnetic resonance studies under pressure of gases and in supercritical media employing a novel titanium–sapphire high‐pressure cell with pressure sensor
Author(s) -
Gaemers S.,
Luyten H.,
Ernsting J. M.,
Elsevier C. J.
Publication year - 1999
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/(sici)1097-458x(199901)37:1<25::aid-mrc408>3.0.co;2-3
Subject(s) - supercritical fluid , chemistry , sapphire , miniaturization , supercritical carbon dioxide , titanium , analytical chemistry (journal) , nuclear magnetic resonance , chemical engineering , nanotechnology , organic chemistry , materials science , optics , laser , engineering , physics
A novel titanium–sapphire high‐pressure NMRcell equipped with a pressure sensor is presented. It enables theaccurate and continuous in situ determination of the pressurein samples under pressure of gases and in supercritical CO 2 . The homogeneity over the cell in commercial probes isexcellent. The usefulness of this NMR cell is demonstrated in several 17 O and 14 N experiments in supercritical CO 2 .Furthermore, 1 H NMR with concomitantmonitoring of the hydrogen gas consumption during a hydrogenationreaction in solution is treated. Important characteristics are theaccuracy combined with simplicity and flexibility of operation.© 1999 John Wiley & Sons, Ltd.