| DOI | Resolve DOI: https://doi.org/10.1007/s00216-016-9827-y |
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| Author | Search for: Le, Phuong-Mai1; Search for: Ding, Jianfu2; Search for: Leek, Donald M.1; Search for: Mester, Zoltan1ORCID identifier: https://orcid.org/0000-0002-2377-2615; Search for: Robertson, Gilles3; Search for: Windust, Anthony1; Search for: Meija, Juris1ORCID identifier: https://orcid.org/0000-0002-3349-5535 |
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| Affiliation | - National Research Council of Canada. Measurement Science and Standards
- National Research Council of Canada. Security and Disruptive Technologies
- National Research Council of Canada. Energy, Mining and Environment
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| Format | Text, Article |
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| Subject | isotope ratio measurements; arsenobetaine; standard; certified reference material |
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| Abstract | In this study, we report the characterization of three arsenobetaine-certified reference materials by quantitative NMR. We have synthesized an arsenobetaine bromide high-purity standard of natural isotopic composition (ABET-1) and two carbon-13-labeled isotopic standards (BBET-1 and CBET-1). Assignments of the chemical purity and isotopic composition are not trivial in the case of arsenobetaine, and in this study we utilized quantitative 1H-NMR techniques for the determination of the mass fractions (chemical purity). The isotopic purity of all three standards was also assessed by NMR from the carbon-13 satellite signals. The standards are non-hygroscopic, highpurity (ca. 0.99 g/g), and the carbon-13 enrichment for both isotopic standards is x(13C) ≈ 0.99. These standards are designed for use as primary calibrators for mass spectrometric determination of arsenobetaine in environmental samples. |
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| Publication date | 2016-08-11 |
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| Publisher | Springer |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 23000646 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 8cfca93b-ee4b-4828-8933-b2d464f06a9b |
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| Record created | 2016-08-17 |
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| Record modified | 2020-03-16 |
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