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ELED-1: Equal atom lead isotopic standard

From National Research Council Canada

Alternative titleELED-1 : Étalon isotopique de plomb à atomes égaux
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DOIResolve DOI: https://doi.org/10.4224/crm.2021.eled-1
AuthorSearch for: 1ORCID identifier: https://orcid.org/0000-0002-3349-5535; Search for: 1; Search for: 2; Search for: 1ORCID identifier: https://orcid.org/0000-0002-1167-6474; Search for: 1ORCID identifier: https://orcid.org/0000-0002-2377-2615; Search for: 1ORCID identifier: https://orcid.org/0000-0002-6896-8603
Affiliation
  1. National Research Council of Canada
  2. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, PR China
Format3D, Material
Material typeCalibration solution
SubjectCanadian reference material; ELED-1; lead; isotopes of lead; atomic weight
Abstract
ELED-1 is a high purity isotopic lead Certified Reference Material (CRM). A unit of ELED-1 consists of 1 mL lead solution at 100 mg/kg in 2 % nitric acid that was prepared by mixing separated lead isotope materials to obtain approximately 1:1:1:1 ratio of lead-204, lead-206, lead-207, and lead-208. This material is intended as an isotopic standard of lead. Certified values for the isotopic composition and the atomic weight of lead have been established for this CRM.
Analytes
View analytes
AnalyteQuantityValueExpanded uncertaintyUnitType
leadatomic weight206.24500.00041certified
lead-204isotopic abundance0.246750.00012mol/molcertified
lead-206isotopic abundance0.251750.00006mol/molcertified
lead-207isotopic abundance0.239580.00008mol/molcertified
lead-208isotopic abundance0.261920.00011mol/molcertified
204Pb/206Pbisotope ratio0.980150.00059mol/molcertified
207Pb/206Pbisotope ratio0.951670.00036mol/molcertified
208Pb/206Pbisotope ratio1.040430.00052mol/molcertified
204Pb/207Pbisotope ratio1.029920.00072mol/molcertified
206Pb/207Pbisotope ratio1.050780.00040mol/molcertified
208Pb/207Pbisotope ratio1.093270.00069mol/molcertified
Publication date
PublisherNational Research Council of Canada
Copyright statement
  • © 2021 National Research Council of Canada
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References
View items (8)
  1. Guide to the expression of uncertainty in measurement (GUM) (1 September 2008). .
  2. Meija, Juris, and Zoltán Mester. ‘Uncertainty Propagation of Atomic Weight Measurement Results’. Metrologia 45, no. 1 (8 January 2008): 53–62. .
  3. Tong, Shuoyun, Juris Meija, Lian Zhou, Brad Methven, Zoltán Mester, and Lu Yang. ‘High-Precision Measurements of the Isotopic Composition of Common Lead Using MC-ICPMS: Comparison of Calibration Strategies Based on Full Gravimetric Isotope Mixture and Regression Models’. Analytical Chemistry 91, no. 6 (7 March 2019): 4164–71. .
  4. Wang, Meng, G. Audi, F. G. Kondev, W.J. Huang, S. Naimi, and Xing Xu. ‘The AME2016 Atomic Mass Evaluation (II). Tables, Graphs and References’. Chinese Physics C 41, no. 3 (March 2017): 030003. .
  5. Sturgeon, R E, B Methven, S N Willie, and P Grinberg. ‘Assignment of Purity to Primary Metal Calibrants Using Pin-Cell VG 9000 Glow Discharge Mass Spectrometry: A Primary Method with Direct Traceability to the SI International System of Units?’ Metrologia 51, no. 5 (25 June 2014): 410–22. .
  6. Dunstan, L.P., J.W. Gramlich, I.L. Barnes, and W.C. Purdy. ‘Absolute Isotopic Abundance and the Atomic Weight of a Reference Sample of Thallium’. Journal of Research of the National Bureau of Standards 85, no. 1 (January 1980): 1. .
  7. NIST SRM 997: Isotopic Standard for Thallium (23 July 1986). .
  8. Yang, Lu, Shuoyun Tong, Lian Zhou, Zhaochu Hu, Zoltán Mester, and Juris Meija. ‘A Critical Review on Isotopic Fractionation Correction Methods for Accurate Isotope Amount Ratio Measurements by MC-ICP-MS’. Journal of Analytical Atomic Spectrometry 33, no. 11 (2018): 1849–61. .
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CollectionCanadian Reference Materials and Methods
Record identifier8e233f68-31ef-4ebf-8e8e-92412d01615d
Record created2021-05-15
Record modified2025-04-16
Date modified: