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Determination of trace and toxic elements in Korean rice CRM by INAA, ICP and AAS

  • Short-Lived Nuclides and Quality Control
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Abstract

Trace and toxic elements in Certified Reference Material (CRM) made of Korean rice at the Korea Research Institute of Standards and Science have been analyzed by Instrumental Neutron Activation Analysis (INAA). Data intercomparison from the measurement with those of Atomic Absorption Spectrometry (AAS) and Induced Coupled Plasma Spectrometry (ICPS) has been studied. The powdered samples were sterilized at 1.5·106 rad in the bottles using a60Co source after sieving and spiking to specific elements such as As, Cd, Cr, Cu and Hg and then the homogeneity of samples was assessed. Rice flour (SRM 1568a) and standard solutions made by the National Institute of Standards Technology (NIST) were used to construct the calibration curves for the INAA and the chemical methods, respectively. The uncertainties and concentration of constituent elements were determined and the possibility of their use for analytical quality control was considered.

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Authors and Affiliations

  1. Korea Atomic Energy Research Institute, Yusong, P.O. Box 105, 305-600, Taejon, Korea

    Yong Sam Chung & Young Ju Chung

  2. Korea Research Institute of Standards and Science, Yusong, P.O. Box 102, 305-600, taejon, Korea

    Kyung Haeng Cho & Joung Hae Lee

Authors
  1. Yong Sam Chung
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  2. Young Ju Chung
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  3. Kyung Haeng Cho
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  4. Joung Hae Lee
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Chung, Y.S., Chung, Y.J., Cho, K.H. et al. Determination of trace and toxic elements in Korean rice CRM by INAA, ICP and AAS. J Radioanal Nucl Chem 215, 129–134 (1997). https://doi.org/10.1007/BF02109888

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  • DOI: https://doi.org/10.1007/BF02109888

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