Radiolytic Stability of the TEHDGA-Impregnated Silica-Based Adsorbent for Extraction Chromatography Yasunori Miyazaki, Yuichi Sano and Ryoya Ishigami EPJ Web Conf., 317 (2025) 01006 Published online: 31 January 2025 DOI: 10.1051/epjconf/202531701006