Determination of trace elements in food by neutron activation analysis

• DOI: 10.1007/bf02035506
• Publication Date: 2005-08-10T22:53:45Z
• Authors: A. Chatt; H. S. Dang; B. B. Fong; C. K. Jayawickreme; L. S. McDowell; D. L. Pegg
• Keywords: 01 natural sciences; 0104 chemical sciences

Neutron activation analysis (NAA) methods have been developed for the determination of major, minor and trace elements in duplicate diets and individual food items. These include a cyclic instrumental NAA (CINAA) method for measuring Se content through its short-lived nuclide77mSe; epithermal INAA (EINAA) for I and As; conventional INAA for Br, Ca, Cl, Co, Cr, Fe, K, Mg, Mn, Na, Rb, Sb, Sc, Sn and Zn; combination of EINAA and INAA for Al; radiochemical NAA (RNAA) for As, Au, Co, Cu, Fe, Hg, Mo, Sb, Se and Zn; and preconcentration NAA (PNAA) for U and Th. Accuracy of measurements have been evaluated by analyzing a number of biological and diet reference materials. Multielement concentrations of diets and foods have been measured by these methods.