Abstract
Multi-element determination in reference materials of soils (JSAC 0401, JSAC 0411) and sediments (NMIJ CRM 7302-a, NMIJ CRM 7303-a), which were prepared at the Japan Society for Analytical Chemistry and the National Institute of Advanced Industrial Science and Technology of the National Metrology Institute of Japan, respectively, has been carried out by neutron-induced prompt gamma-ray analysis (PGA) using standard addition and k0-standardization methods. Firstly, the absolute Ti concentrations in the samples were determined accurately by the standard addition method. Secondly, the relative multi-element concentrations were determined by the k0-standardization method. Finally, the absolute multi-element concentrations were obtained by normalizing the relative multi-element concentrations with the absolute Ti concentration in the samples. The 15 elements, such as H, B, Na, Si, S, Cl, K, Ca, Ti Cr, Mn, Fe, Cd, Sm and Gd were determined by k0-PGA. The analytical results of these reference materials agreed with the certified or reference values within about 10%.
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