Determination of iridium and gold in rock samples by using pre-concentration neutron activation analysis

N. Tanaka, Y. Oura, M. Ebihara

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Nickel sulfide (NiS) fire assay was used for the pre-concentration of Ir and Au in rock samples. The beads obtained after fire assay were irradiated directly with neutrons to determine Ir and Au. To suppress the reaction of 58Ni(n,p)58Co, the fire assay was carried out by using a small amount of Ni (0.0625 g) and the NiS bead samples were irradiated by neutrons with high Cd ratios. Analytical results of Ir and Au for rock samples were close to literature values, confirming that our procedure of INAA with pre-concentration can be applied to rock samples for the determination of ppb to sub-ppb level of Ir and Au.

本文言語English
ページ(範囲)603-606
ページ数4
ジャーナルJournal of Radioanalytical and Nuclear Chemistry
278
3
DOI
出版ステータスPublished - 2008 12
外部発表はい

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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