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Application of immobilized free radicals in supercritical fluid chromatography hyphenated with proton nuclear magnetic resonance spectroscopy
Author(s) -
Fischer Holger,
Raitza Martin,
Albert Klaus
Publication year - 2000
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 - 10.1002/1097-458x(200005)38:5<336::aid-mrc652>3.0.co;2-5
Subject(s) - chemistry , nuclear magnetic resonance spectroscopy , radical , supercritical fluid chromatography , supercritical fluid , spectroscopy , analytical chemistry (journal) , proton nmr , nuclear magnetic resonance , relaxation (psychology) , chromatography , high performance liquid chromatography , organic chemistry , psychology , social psychology , physics , quantum mechanics
Immobilized free radicals were synthesized and used to shorten the spin–lattice relaxation times of analytes in the hyphenation of supercritical fluid chromatography (SFC) with proton high‐field nuclear magnetic resonance spectroscopy (NMR). The effect of the immobilized free radicals was studied for the first time under on‐line SFC–NMR coupling conditions. With this method it was possible to obtain integratable NMR spectra in on‐line continuous‐flow SFC– 1 H NMR spectroscopy. Copyright © 2000 John Wiley & Sons, Ltd.