機器中性子放射化分析によるホンダワラ標準試料の多元素定量

概要

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Concentrations of 38 elements in an environmental reference material Sargasso (NIES No. 9) prepared by the National Institute for Environmental Studies of Japan (NIES) were determined by instrumental neutron activation analysis (NIAA). The Sargasso samples (ca. 150-500 mg) were irradiated by thermal neutron without cadmium filter and epithermal neutron with cadmium filter at Musashi Institute of Technology Research Reactor (MITRR). The activated samples were measured by three methods; conventional gammaray spectrometry using a coaxial Ge detector, anticoincidence counting spectrometry and coincidence counting spectrometry. Concentrations of 31 elements (Na, Mg, Al, S, Cl, K, Ca, Sc, V, Cr, Mn, Fe, Co, Zn, As, Br, Rb, Sr, Ag, Sb, Te, I, Cs, Ba, Ce, Sm, Eu, Tb, Yb, Au, U) were determined by the conventional combination of thermal neutron irradiation without cadminum filter and the gammaray spectrometry method. Concentrations of other 7 element (Ni, Se, Zr, Mo, La, Hf, Th) were determined by other combinations of irradiation and spectrometry method.
社団法人日本分析化学会の論文
1989-04-05