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Fresenius' Journal of Analytical Chemistry

, Volume 352, Issue 1–2, pp 58–60 | Cite as

Elemental concentrations in the spinach reference material determined by k0-based INAA

  • M. Carmo Freitas
Global Needs For RM

Abstract

The IAEA-331 spinach material NIST SRM 1570a Spinach Leaves, submitted to an intercomparison run by the IAEA, has been analysed by k0-based INAA with counting using both low and high energy photon detectors. The results have been compared with (i) the certified values of the NIST SRM 1570a; the agreement is good, taking into account the uncertainties; and (ii) the certified and “consensus” values of the former NIST SRM 1570 Spinach Leaves, their composition in minor and trace-elements are quite similar; however a lower content has been observed for Co, Fe and Sc in the IAEA-331 and for Zn in the SRM 1570. For quality control, the NIST 1573 Tomato Leaves and the NIST 1575 Pine Needles have been analysed using the same conditions as for the IAEA-331. The results agree quite well with the certified and “consensus” values given in the literature.

Keywords

Physical Chemistry Analytical Chemistry Inorganic Chemistry Quality Control Reference Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • M. Carmo Freitas
    • 1
  1. 1.Departmento de QuímicaINETI/Instituto de Ciências e Engenharia NuclearesSacavém CodexPortugal

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