| DOI | Trouver le DOI : https://doi.org/10.1016/j.talanta.2005.07.027 |
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| Auteur | Rechercher : Kan, M.; Rechercher : Willie, S. N.1; Rechercher : Scriver, C.1; Rechercher : Sturgeon, R.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut des étalons nationaux de mesure du CNRC
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| Format | Texte, Article |
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| Sujet | mercury; biological samples; formic acid solubilization; flow injection CVAAS |
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| Résumé | Total mercury in biological samples was determined by flow injection (FI) cold vapour atomic absorption spectrometry (CVAAS) following tissue solubilization with formic acid. A mixture of potassium bromide and potassium bromate was used to decompose organomercury compounds prior to their reduction with sodium borohydride. A gold amalgam system was used to achieve lower detection limits when required. National Research Council Canada certified reference materials dogfish liver (DOLT-3), dogfish flesh (DORM-2) and lobster hepatopancreas (TORT-2), as well as oyster tissue (NIST SRM 1566b) and mussel tissue (NIST SRM 2976) were used to assess the accuracy of the method. The method of standard additions provided the most accurate results. Limit of detection (LOD) for Hg in the solid sample of 0.001 and 0.01 μg g−1 were achieved with and without amalgamation, respectively. The precision of measurement for 1.6 ng ml−1 methylmercury was 2.7% using the amalgam system. |
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| Date de publication | 2006-02-15 |
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| Dans | |
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| Langue | anglais |
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| Numéro du CNRC | NRC-INMS-4001 |
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| Numéro NPARC | 8897779 |
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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 | a02990e3-28ba-498c-9712-9d9c2d059c57 |
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| Enregistrement créé | 2009-04-22 |
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| Enregistrement modifié | 2020-04-22 |
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