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Determination of Ti, K, Sm and Gd Values in Geological Survey of Japan Reference Materials by Prompt Gamma Neutron Activation Analysis
Author(s) -
Sano Takashi,
Hasenaka Toshiaki,
Sawahata Hiroyuki,
Fukuoka Takaaki
Publication year - 2006
Publication title -
geostandards and geoanalytical research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.037
H-Index - 73
eISSN - 1751-908X
pISSN - 1639-4488
DOI - 10.1111/j.1751-908x.2006.tb00909.x
Subject(s) - neutron activation analysis , radiochemistry , samarium , neutron activation , neutron , analytical chemistry (journal) , materials science , mineralogy , chemistry , nuclear chemistry , physics , environmental chemistry , nuclear physics , inorganic chemistry
Prompt gamma neutron activation analysis was applied to the determination of the titanium, potassium, samarium and gadolinium contents of nine Geological Survey of Japan (GSJ) reference materials (JB‐1, 1a, 2, 3; JA‐1, 2, 3; JR‐1, 2). Firstly, the values in JB‐1 were determined by the standard addition method: pressed powder disks of JB‐1 were used for neutron irradiation and gamma‐ray measurements, after known quantities of standard reagents had been added. Secondly, the contents of eight other reference materials were determined by comparison methods using JB‐1 as the comparative standard. The precision of analyses were obtained by replicate determinations on these samples. The relative standard deviation was generally less than 5%. For most samples, analysed values agreed well (< 5%) with the recommended values.