Simple measurement of 14C in the environment using a gel suspension method

G. Wakabayashi, H. Ohura, T. Okai, M. Matoba, A. Nohtomi, H. Kakiuchi, N. Momoshima, H. Kawamura

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3 Citations (Scopus)


A simple analytical method for environmental 14C with a low background liquid scintillation counter was developed. We used a new gelling agent, N-lauroyl-L-glutamic-α,γ-dibutylamide, for the liquid scintillation counting of 14C as CaCO3 (gel suspension method). Our procedure for sample preparation was much simpler than that of conventional methods and required no special equipment. The samples prepared with the standard sample of CaCO3 were measured to evaluate the self absorption of the sample, the optimum condition of counting and the detection limit. Our results indicated that the newly developed technique could be efficiently applied for the monitoring of environmental 14C.

Original languageEnglish
Pages (from-to)639-642
Number of pages4
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number3
Publication statusPublished - 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • 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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