Development of rapid urine analysis method for uranium

Kuwabara, Jun; Noguchi, Hiroshi

Proceedings of 10th International Congress of the International Radiation Protection Association (IRPA-10) (CD-ROM), 4 Pages, 2000/05

no abstracts in English

Online solid-phase extraction ICP-MS for determination of technetium-99 in environmental samples

Matsueda, Makoto; Terashima, Motoki; Takagai, Yoshitaka*

no journal, , 

Technetium-99 (Tc) is a pure beta-emitting radionuclide with a long half-life (210 000 years), produced with a yield of about 6% during the fission of U and Pu. The properties of high mobility in environment and concentrated into specific seaweeds were applied as a tracer for radioisotopes released into the environment. Inductively coupled plasma-mass spectrometry (ICP-MS) is the main method for Tc analysis; however, the isobars (Ru and MoH) interfere the quantification. In this study, a multi-stage separation and analysis system (online SPE-ICP-MS) for Tc was constructed by attaching a solid phase extraction (SPE) resin to a flow injection (FI) system and combining it with a collision reaction cell (CRC) in an ICP-MS. In addition, a high sensitivity for detecting trace amounts of Tc was developed.

α線放出核種の多核種同時分析方法

松枝 誠; 寺島 元基; 飯島 和毅

高貝 慶隆*

JP, 2021-182438  Patent licensing information

【課題】煩雑な工程を必要とせずに、α線放出核種を同時に複数種定量分析することができる方法を提供する。 【解決手段】固相抽出用樹脂を備えたカラム2に試料溶液を導入し、カラム2の固相抽出用樹脂に試料溶液に含まれるα線放出核種を吸着させ、固相抽出用樹脂に吸着されたα線放出核種をグループごとに溶離液に溶出させ、当該溶離液を霧化してプラズマイオン源5に導入してイオン化し、当該イオン群に酸素又はアンモニアを導入して、それらガスとの反応により当該元素のイオンの質量を変換し、次いで、四重極マスフィルター9において特定の質量数を持つイオンを除去し、四重極マスフィルター9を通過したα線放出核種の特定信号を測定する。