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| DOI | Trouver le DOI : https://doi.org/10.1007/s00216-022-04292-0 |
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| Auteur | Rechercher : Le, Phuong Mai1Identifiant ORCID : https://orcid.org/0000-0002-6101-5252; Rechercher : Martineau, Estelle; Rechercher : Akoka, Serge; Rechercher : Remaud, Gerald; Rechercher : Chartrand, Michelle M. G.1Identifiant ORCID : https://orcid.org/0000-0002-2377-2615; Rechercher : Meija, Juris1Identifiant ORCID : https://orcid.org/0000-0002-3349-5535; Rechercher : Mester, Zoltán1Identifiant ORCID : https://orcid.org/0000-0002-2377-2615 |
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| Affiliation du nom | - Conseil national de recherches du Canada. Centre de recherche en métrologie
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| Format | Texte, Article |
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| Sujet | site specific isotope ratios; carbon; ¹³C-qNMR; vanillin; certified reference material |
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| Résumé | Vanillin, one of the world’s most popular flavor used in food and pharmaceutical industries, is extracted from vanilla beans or obtained (bio)-synthetically. The price of natural vanillin is considerably higher than that of its synthetic alternative which leads increasingly to counterfeit vanillin. Here, we describe the workflow of combining carbon isotope ratio combustion mass spectrometry with quantitative carbon nuclear magnetic resonance spectrometry (¹³C-qNMR) to obtain carbon isotope measurements traceable to the Vienna Peedee Belemnite (VPDB) with 0.7‰ combined standard uncertainty (or expanded uncertainty of 1.4‰ at 95% confidence level). We perform these measurements on qualified Bruker 400 MHz instruments to certify site-specific carbon isotope delta values in two vanillin materials, VANA-1 and VANB-1, believed to be the first intramolecular isotopic certified reference material (CRMs). Graphical abstract |
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| Date de publication | 2022-09-13 |
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| Maison d’édition | Springer |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 851a8ba4-13ff-4137-90e5-4b30d23f5a99 |
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| Enregistrement créé | 2023-01-06 |
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| Enregistrement modifié | 2023-01-06 |
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