Certified reference material IAEA-418: 129I in Mediterranean Sea water

M. K. Pham, M. Betti, P. P. Povinec, V. Alfimov, D. Biddulph, J. Gastaud, W. E. Kieser, J. M. López Gutiérrez, G. Possnert, J. A. Sanchez-Cabeza, T. Suzuki

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A certified reference material designed for the determination of 129I in seawater, IAEA-418 (Mediterranean Sea water) is described and the results of certification are presented. The median of 129I concentration with 95% confidence interval was chosen as the most reliable estimates of the true value. The median, given as the certified value, is 2.28 × 108 atom L-1 (95% confidence interval is (2.16-2.73) 108 atom L-1), or 3.19 × 10-7 Bq L-1 (95% confidence interval is (3.02-3.82) × 10 -7 Bq L-1). The material is intended to be used for standardization procedures applied in accelerator mass spectrometric laboratories. It is available in 1 L units and may be ordered via IAEA web side ( www.iaea.org ). © 2010 Akadémiai Kiadó, Budapest, Hungary.
Original languageEnglish
Pages (from-to)121-127
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number1
Publication statusPublished - 1 Jan 2010


  • Certified reference material
  • Mediterranean Sea
  • Seawater


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