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Determination of trace elements in food reference materials by instrumetal neutron activation analysis
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2005, v.18 no.6, pp.520-528
&
R.Zeisler,
(2005). Determination of trace elements in food reference materials by instrumetal neutron activation analysis. Analytical Science and Technology, 18(6), 520-528.
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Abstract
Two biological Certified Reference Materials (CRMs), KRISS 108-04-001 (oyster tissue) and 108-05-001 (water dropwort stem), were prepared by Korea Research Institute of Standards and Science (KRISS)during FY '01. The certified values of these materials had been determined by Isotope Dilution Mass Spectrometry (IDMS) for six elements (Cd, Cr, Cu, Fe, Pb and Zn). Additional analytical works are now progressing to certify the concentrations of a number of the environmental and nutrimental elements in these CRMs. The certified values in a CRM are usually determined by using a single primary method with confirmation by other method(s) or using two independent critically-evaluated methods. Instrumental Neutron Activation Analysis (INAA) plays an important role in the determination of certified values as it can eliminate the possibility of common error sources resulting from sample dissolution. In this study INAA procedure was used in determination of 23 elements in these two biological CRMs to acquire the concentration information and the results were compared with KRISS certified values.
- keywords
- Instrumental neutron activation analysis, oyster tissue, water dropwort, trace elements, certified reference material, comparator method
Reference
1
(2000) Definitions of Terms andModes Used at NIST for Valued-Assignment of ReferenceMaterials for Chemical Measurements,
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