Improved urine analysis for polonium, natural uranium, and thorium isotopes and background survey in collected samples of normal people

Seokwon Yoon, Yejin Kim, Wi Ho Ha, Moon Ki Jo, Sunhoo Park, Jung min Kim

Research output: Contribution to journalArticle


A sequential analysis procedure for urine samples was developed and validated focusing on 210Po, natural uranium, and thorium radioisotopes. The amount of sample for analysis and counting time were estimated to meet the criteria of minimum detectable activity, which was referenced from the ICRP. The analysis procedure was modified via sequential extraction and was validated using certified reference samples. The time required for sample preparation by this method was compared with those by other methods. Forty-four urine samples collected from participants were analyzed, and the results were compared with those obtained in other studies.

Original languageEnglish
Pages (from-to)1871-1875
Number of pages5
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number3
Publication statusPublished - 2019 Dec 1



  • Background survey
  • Natural uranium
  • Polonium
  • Sequential extraction
  • Thorium
  • Urine analysis

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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