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Bodart, P.R.* ; Rachocki, A.* ; Tritt-Goc, J.* ; Michalke, B. ; Schmitt-Kopplin, P. ; Karbowiak, T.* ; Gougeon, R.D.*

Quantification of manganous ions in wine by NMR relaxometry.

Talanta 209:120561 (2020)
Postprint DOI
Open Access Green
Proton relaxation in model and real wines is investigated for the first time by fast field cycling NMR relaxometry. The relaxation mechanism unambiguously originates form proton interaction with paramagnetic ions naturally present in wines. Profiles of a white Chardonnay wine from Burgundy, a red Medoc, and model wines are well reproduced by Solomon-Bloembergen-Morgan equations. Relaxation is primarily governed by interactions with Mn2+. A straightforward model-independent quantification of the manganese ion concentration (down to few tens of mu g/L) is proposed.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Ffc Nmr Relaxometry ; Chardonnay Wine ; Paramagnetic Ions ; Manganese; Field-cycling Nmr; Magnetic-relaxation Dispersion; Proton Relaxation; Contrast Agents; Geographical Origin; Paramagnetic-ions; Aqueous-solutions; Trace-elements; H-1 Nmrd; Icp-ms
ISSN (print) / ISBN 0039-9140
e-ISSN 0039-9140
Zeitschrift Talanta
Quellenangaben Band: 209, Heft: , Seiten: , Artikelnummer: 120561 Supplement: ,
Verlag Elsevier
Verlagsort Radarweg 29, 1043 Nx Amsterdam, Netherlands
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Analytical BioGeoChemistry (BGC)