Skip to Main content Skip to Navigation
Journal articles

Quantification of manganous ions in wine by NMR relaxometry

Philippe Bodart 1 Adam Rachocki 2 Jadwiga Tritt-Goc 2 Bernhard Michalke 3 Philippe Schmitt-Kopplin 4 Thomas Karbowiak 5 Régis Gougeon 6, 1
1 PAM - Procédés Alimentaires et Microbiologiques [Dijon]
2 Institute of Physics, Polish Academy of Sciences
3 BGC - Research Unit Analytical BioGeoChemistry
4 Chair of Analytical Food Chemistry
5 PCAV - Physico-Chimie de l'Aliment et du Vin
PAM - Procédés Alimentaires et Microbiologiques [Dijon]
6 IUVV Jules Guyot - Institut Universitaire de la Vigne et du Vin "Jules Guyot"
Abstract : 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.
Keywords : FFC NMR relaxometry Chardonnay wine Paramagnetic ions Manganese
Document type :
Journal articles
Complete list of metadata
https://hal-agrosup-dijon.archives-ouvertes.fr/hal-02499122
Contributor : Admin Agrosupdijon Connect in order to contact the contributor
Submitted on : Thursday, March 5, 2020 - 9:13:25 AM
Last modification on : Saturday, October 2, 2021 - 3:39:32 AM

Links full text

openaccess

Identifiers

Collections

AGROSUP-DIJON | AGROSUP-PAM | UNIV-BOURGOGNE | PAM

Citation

Philippe Bodart, Adam Rachocki, Jadwiga Tritt-Goc, Bernhard Michalke, Philippe Schmitt-Kopplin, et al.. Quantification of manganous ions in wine by NMR relaxometry. Talanta, Elsevier, 2020, 209, pp.120561. ⟨10.1016/j.talanta.2019.120561⟩. ⟨hal-02499122⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

128