[1H11-13] Adosorption on Soil, Analytical Technique

[1H12] Development of analytical method of ¹²⁹I and ³⁶Cl for radioactive rubbles

*Yuki Ohta¹, Kiyoko Kurosawa¹, Yoshiaki Motoki¹, Van-Khoai Do¹, Takahiro Furuse¹ (1. JAEA)

Keywords:129I, 36Cl, ICP-MS, LSC, solid phase extraction

We have developed an analytical method of ¹²⁹I (half-life: 1.57 × 10⁷ years) and ³⁶Cl (half-life: 3.01 × 10⁵ years) in various radioactive rubbles generated by decommissioning of the Fukushima Daiichi Nuclear Power Plant (1F). A sequential chemical separation procedure has been developed to isolate the nuclides from the sample matrix, followed by the quantification by inductively coupled plasma-mass spectrometry (ICP-MS) and liquid scintillation counting (LSC), respectively.