Determination of chlorine, bromine and iodine in rock samples by radiochemical neutron activation analysis

M. Ebihara, H. Ozaki, F. Kato, H. Nakahara

研究成果: Article査読

10 被引用数 (Scopus)

抄録

Chlorine, bromine and iodine (hereafter, halogens) were determined for rock samples by radiochemical neutron activation analysis. The powdered samples and reference standards prepared from chemical reagents were simultaneously irradiated for 10 to 30 minutes with or without a cadmium filter in a TRIGA-II reactor at the Institute for Atomic Energy, Rikkyo University. The samples were subjected to radiochemical procedures of halogens immediately after the irradiation. Iodine was firstly precipitated as PdI2, and chlorine and bromine were successively precipitated as Ag-halides at the same time. In this study, geological standard rocks, sedimentary rocks and meteorites were analyzed for trace halogens. In some Antarctic meteorites, iodine contents were observed to be anomalously high. Chlorine contents also are somewhat high. The overabundance of iodine and chlorine must be caused by terrestrial contamination on the Antarctica.

本文言語English
ページ(範囲)107-112
ページ数6
ジャーナルJournal of Radioanalytical and Nuclear Chemistry
216
1
DOI
出版ステータスPublished - 1997
外部発表はい

ASJC Scopus subject areas

  • 分析化学
  • 原子力エネルギーおよび原子力工学
  • 放射線学、核医学およびイメージング
  • 汚染
  • 分光学
  • 公衆衛生学、環境および労働衛生
  • 健康、毒物学および変異誘発

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