Determination of technetium-99 and neptunium-237 in environmental samples by inductively coupled plasma mass spectrometry

Sh Sumiya, Sh Morita, K. Tobita, M. Kurabayashi

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

New analytical techniques using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) were applied to the determination of technetium-99 (Tc-99) and neptunium-237 (Np-237) in environmental samples. The determination of Tc-99 consists of a cyclohexanone solvent extraction method to eliminate the interference isobar (Ru-99). An anion exchange with acetic acid media and a TTA-xylene solvent extraction were used for the determination of Np-237. Technetium-95m and Np-239 were used as chemical recovery tracers in these methods. The concentrations of Tc-99 and Np-237 in the typical surface soil samples in Japan ranged form 8.1×102 to 1.8×10-1 Bq/kg-dry, from 3.3×10-3 to 8.0×10-3 Bq/kg-dry, respectively.

Original languageEnglish
Pages (from-to)149-159
Number of pages11
JournalJournal of Radioanalytical and Nuclear Chemistry Articles
Volume177
Issue number1
DOIs
Publication statusPublished - 1994 Jan 1
Externally publishedYes

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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