Document Detail

Certified reference material for analytical quality assurance of minor and trace elements in food and related matrixes based on a typical Japanese diet: interlaboratory study.
MedLine Citation:
PMID:  11501924     Owner:  NLM     Status:  MEDLINE    
A Certified Reference Material (CRM) was prepared at the National Institute for Environmental Studies (NIES), Japan, in collaboration with the National Institute of Radiological Sciences (NIRS), Japan, for the analytical quality assurance of minor and trace elements in food and related matrixes. The starting material for the CRM was all food served in 29 households in Japan over two 3-day periods in 1997-1998, and thus the CRM represented a typical Japanese diet. All foods (meals, snacks, and beverages) were homogenized, freeze-dried, pulverized, blended, dispensed into 1,100 bottles, and sterilized. The within- and between-bottle homogeneity of the prepared CRM was satisfactory for most of the elements. The concentrations of 14 elements (Na, Mg, K, Ca, Mn, Cu, Zn, As, Se, Sr, Cd, Sn, Ba, and U) were certified based on a collaborative analysis involving NIES, NIRS, and 20 other laboratories. Reference values were given for the concentrations of 12 additional elements (P, Cl, Fe, Co, Ni, Br, Rb, Mo, I, Cs, Pb, and Th). The elements certified and those given reference values include minerals, essential trace elements, contaminant elements, and long-lived radionuclides. Thus, this CRM is of practical value in the quality assurance of element analysis of foods and diets in nutritional, environmental, and radiological research.
J Joshinaga; M Morita; M Yukawa; K Shiraishi; H Kawamura
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of AOAC International     Volume:  84     ISSN:  1060-3271     ISO Abbreviation:  J AOAC Int     Publication Date:    2001 Jul-Aug
Date Detail:
Created Date:  2001-08-14     Completed Date:  2001-12-21     Revised Date:  2008-03-17    
Medline Journal Info:
Nlm Unique ID:  9215446     Medline TA:  J AOAC Int     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1202-8     Citation Subset:  IM    
National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan.
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MeSH Terms
Food Analysis*
Quality Control
Reference Standards*
Reference Values
Trace Elements / analysis*
Reg. No./Substance:
0/Trace Elements

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