[3K03-08] Nuclide Analysis 1

[3K07] Development of Microfluidic Devices for Highly Efficient Separation and Detection of Selenium Ion

*Aileen Brandt¹, Takehiko Tsukahara¹ (1. Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology)

Keywords:Selenium-79, Microfluidic device, Solvent extraction, Surface modification

Analytical focuses on low abundance long-lived radionuclides such as selenium-79 due to environmental safety implications and reduction of radiation exposure. This research developed a microfluidic solvent extraction system for selenium separation and detection. Formation of selenium complex 4,5- benzopiazselenol (BPS) and microscale extraction of BPS in a fabricated hydrophobic-hydrophilic patterned microfluidic chip was achieved.