[1E10-12] 分析技術2

[1E12] Direct measurement of Cs-135 in Cs adsorbent used for water decontamination by laser-ablation ICP-MS

*Shiho Asai¹, Masaki Ohata¹, Yukiko Hanzawa², Takuma Horita², Takumi Yomogida², Yoshihiro Kitatsuji² (1. AIST, 2. JAEA)

キーワード：Cs-135, Contaminated water, Cs adsorbent, ICP-MS, laser ablation

A difficult-to measure long-lived radionuclide ¹³⁵Cs can be found in Cs adsorbents that was used for water decontamination of the Fukushima Daiichi nuclear power plant along with ¹³⁷Cs. In this study, we have developed a rapid determination technique of ¹³⁵Cs that is characterized by direct measurement of the Cs adsorbent with laser-ablation ICP-MS, allowing to skip the elution and chemical separation procedures.