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Journal of Radioanalytical and Nuclear Chemistry

, Volume 322, Issue 3, pp 1537–1547 | Cite as

Application of the INAA methods for KRISS infant formula CRM analysis: standardization of INAA at KRISS

  • Hana ChoEmail author
  • Kishore B. Dasari
  • Radojko Jaćimović
  • Rolf Zeisler
  • Nicholas E. Sharp
  • Sun-Ha Kim
  • Gwang Min Sun
  • Yong-Hyeon Yim
Article
  • 177 Downloads

Abstract

We have established an instrumental neutron activation analysis (INAA) method, including k0-based INAA, at the Korea Research Institute of Standards and Science (KRISS) for the certification of reference materials. As part of establishing INAA measurements, KRISS infant formula certified reference material was analysed for multiple elements at three different metrological institutes: KRISS and NIST for the standard comparator method, and JSI for the k0-INAA method. The mass fraction of most elements was consistent within expanded uncertainty (k = 2). In addition, the results were used to verify the validity of elemental analysis of Zn using the standard comparator INAA at KRISS, and spreadsheet-based INAA calculations were evaluated.

Keywords

Instrumental neutron activation analysis Standard comparator method k0-standarization method Certified reference material Primary ratio method Infant formula 

Notes

Acknowledgements

We greatly appreciate the support received from Dr. In Jung Kim at KRISS. This work was supported by KRISS under the Project, “Establishing Measurement Standards for Inorganic Analysis” Grant 18011054. Part of this work was supported by KAERI trough the Korea Government Project No. MSIT/1711078081. The Slovenian co-author would like to thank the Slovenian Research Agency (ARRS) for financial support of program group P1-0143 and the Metrology Institute of the Republic of Slovenia (MIRS), as his work contributes to MIRS/IJS Contract No. 6401-5/2009/27 for activities and obligations performed as a Designate Institute as an etalon for amount of substance/chemical trace elements/in the organic and inorganic materials. The authors would also like to thank the NCNR for support and access to reactor facilities.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Center for Analytical ChemistryKorea Research Institute of Standards and ScienceDaejeonRepublic of Korea
  2. 2.Neutron and Radioisotope Application Research DivisionKorea Atomic Energy Research InstituteDaejeonRepublic of Korea
  3. 3.Department of Environmental SciencesJožef Stefan InstituteLjubljanaSlovenia
  4. 4.Chemical Sciences DivisionNational Institute of Standards and TechnologyGaithersburgUSA

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