| Alternative title | ALEU-1 : Matériau de référence certifié pour la L-leucine |
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| DOI | Resolve DOI: https://doi.org/10.4224/crm.2017.aleu-1 |
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| Author | Search for: Thibeault, Marie-Pier1; Search for: Leek, Donald1; Search for: Meija, Juris1ORCID identifier: https://orcid.org/0000-0002-3349-5535; Search for: Melanson, Jeremy1ORCID identifier: https://orcid.org/0000-0002-2290-0101 |
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| Affiliation | - National Research Council Canada
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| Format | 3D, Material |
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| Material type | High-purity material |
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| Subject | Canadian reference material; ALEU-1; leucine; amino acid standard |
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| Abstract | ALEU-1 is a pure substance certified reference material (CRM) for L-leucine. This material, distributed in 100 mg units, is intended for instrument calibration, method development, and validation for the quantitation of L-leucine and DL-leucine mixtures. Certified values for the mass fraction of L-leucine and DL-leucine mixture in ALEU-1 has been established. Information values for the mass fraction of D-leucine and other amino acids related minor impurities are provided. |
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| Analytes | | Analyte | Quantity | Value | Expanded uncertainty | Unit | Type |
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| L-leucine | mass fraction | 0.9935 | 0.0054 | g/g | certified | | DL-leucine | mass fraction | 0.9936 | 0.0054 | g/g | certified | | D-leucine | mass fraction | 0.00012 | | g/g | information | | isoleucine | mass fraction | 0.0023 | | g/g | information | | methionine | mass fraction | 0.000068 | | g/g | information | | phenylalanine | mass fraction | 0.0000038 | | g/g | information | | valine | mass fraction | 0.000027 | | g/g | information |
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| Period of validity | - Valid from 2025-12-18 until 2031-12-31
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| Storage conditions | |
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| Publication date | 2017-10-01 |
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| Publisher | National Research Council Canada |
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| Copyright statement | - © 2017
National Research Council Canada
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| Access condition | |
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| References | - DerSimonian, Rebecca, and Nan Laird. ‘Meta-Analysis in Clinical Trials’. Controlled Clinical Trials 7, no. 3 (September 1986): 177–88. https://doi.org/10.1016/0197-2456(86)90046-2.
- ‘Evaluation of Measurement Data — Guide to the Expression of Uncertainty in Measurement’, 2008. https://doi.org/10.59161/jcgm100-2008e.
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| Export citation | Export as RIS |
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| Collection | Canadian Reference Materials and Methods |
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| Record identifier | 4ca1f5ab-6eac-45fa-b6f7-1f6c9226ccf4 |
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| Record created | 2019-08-21 |
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| Record modified | 2025-12-23 |
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