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<p>Polonium-210 (Po-210) is considered to be one of the most poisonous radionuclides by food ingestion. However, analytical methods for detection of Po-210 remain controversial. Therefore, we explored practical methods for measuring Po-210 that are applicable to various foods. The pretreatment procedures were evaluated using a wide range of foods. Direct electrodeposition onto a stainless steel disc yielded recovery (93–113%) and good alpha spectrum in food categories excluding those rich in electrolytes. For an electrolyte-rich food category, additional column chromatography extraction significantly improved polonium recovery from 0 to 107%. Here, we suggest using these methods properly according to the food type.</p>

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An analytical method for polonium-210 detection applicable to a wide range of food

  • 期刊论文

  • 发表日期：

    2026年5月2日

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  • Keisuke Soga,
  • Yohei Kataoka,
  • Norihito Shibata,
  • Akiko Hachisuka

摘要

Polonium-210 (Po-210) is considered to be one of the most poisonous radionuclides by food ingestion. However, analytical methods for detection of Po-210 remain controversial. Therefore, we explored practical methods for measuring Po-210 that are applicable to various foods. The pretreatment procedures were evaluated using a wide range of foods. Direct electrodeposition onto a stainless steel disc yielded recovery (93–113%) and good alpha spectrum in food categories excluding those rich in electrolytes. For an electrolyte-rich food category, additional column chromatography extraction significantly improved polonium recovery from 0 to 107%. Here, we suggest using these methods properly according to the food type.