[3D04-07] Analytical Technique 1

[3D04] Development of measurement method of ²³⁶U using ICP-MS/MS

*Yasuyuki Tanaka¹, Van-Khoai Do¹, Yoshiaki Motoki¹, Yuki Ohta¹, Hiroyuki Iwahashi¹, Kiyoko Kurosawa¹, Takahiro Furuse¹ (1. JAEA)

Keywords:236U, ICP-MS/MS, radiochemical analysis

We examined the measurement method of ²³⁶U using triple-quadrupole inductively coupled plasma-mass spectrometry (ICP-MS/MS, Agilent 8900). The measurable mass to charge ratio (m/z) is expanded up to 275, the device can measure ²³⁶U¹⁶O¹⁶O (m/z = 268) generated by the reaction with O₂, which was used as a reaction gas. This mass shift mode decreased the interference from hydride of ²³⁵U compared to the previously reported analytical method, which improved limit of detection of ²³⁶U using ICP-MS/MS. In this presentation, the optimized measurement condition of ²³⁶U measured at m/z = 268 by ICP-MS/MS is reported.