| Autre titre | Preparation and certification of natural and 82Se-labelled selenomethionine reference material |
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| Téléchargement | - Voir la version de l’auteur : Preparation and certification of natural and ⁸²Se-labelled selenomethionine reference materials (PDF, 1.5 Mio)
- Voir les données supplémentaires partie 1 : Preparation and certification of natural and ⁸²Se-labelled selenomethionine reference materials (PDF, 858 Kio)
- Voir les données supplémentaires partie 2 : Preparation and certification of natural and ⁸²Se-labelled selenomethionine reference materials (PDF, 1.0 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1039/D0JA00411A |
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| Auteur | Rechercher : LeBlanc, Kelly L.1Identifiant ORCID : https://orcid.org/0000-0001-6544-5850; Rechercher : Le, Phuong-Mai1; Rechercher : Meija, Juris1Identifiant ORCID : https://orcid.org/0000-0002-3349-5535; Rechercher : Ding, Jianfu2; Rechercher : Melanson, Jeremy E.1; Rechercher : Mester, Zoltán1 |
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| Affiliation | - Conseil national de recherches du Canada. Centre de recherche en métrologie
- Conseil national de recherches du Canada. Technologies de sécurité et de rupture
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| Format | Texte, Article |
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| Résumé | Challenges frequently faced during the analysis of selenomethionine in complex matrices such as food and environmental samples include the lack of SI-traceable primary standards as well as difficulties associated with complex sample preparation methods resulting in potentially biased measurement results. In an effort to overcome these challenges, the National Research Council Canada has prepared two selenomethionine reference materials: a high-purity powder of natural isotopic abundance (SENS-1), and a solution of selenium-82 labelled selenomethionine (SEES-1). The purity of SENS-1, 0.961 ± 0.007 g g⁻¹ (k = 2), was established through quantitative nuclear magnetic resonance spectroscopy combined with data from inductively-coupled plasma mass spectrometry for total selenium content and the HPLC analysis of selenium-containing impurities. With the chemical purity of SENS-1 established, it was then used as the primary standard for reverse isotope dilution analysis, where the concentration of selenomethionine in SEES-1 was determined to be 1556 ± 60 μg g⁻¹ (k = 2). |
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| Date de publication | 2021-01-12 |
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| Maison d’édition | Royal Society of Chemistry |
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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 | 1f91486b-cc0c-4fdb-99f8-f834da7ad776 |
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| Enregistrement créé | 2021-04-13 |
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| Enregistrement modifié | 2021-05-10 |
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