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DOE OSTI · 3013470

Automated Systems for Solvent Extraction

Halstenberg, Phillip [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000260304503)·Braatz, Jisue [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000212106342)·Mahurin, Shannon Mark [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000337921631)·Dai, Sheng [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000280463931)
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Abstract

An automated solvent extraction system for the eventual handling of radioactive materials has been designed and procured for rapid, efficient and safe liquid-liquid extraction processes. This system will be configured to carry out liquid-liquid separations from beginning to end, automating tedious and time-consuming tasks such as organic/aqueous phase prep, pH checks, phase separation, and metal ion analysis. The system features advanced liquid handling capabilities, a robotic arm for precise sample transfer, and sophisticated analytical tools including UV-VIS spectrophotometry for real-time monitoring. Additionally, it incorporates automated capping of vials, vortex mixing, and centrifugation to ensure thorough mixing and phase separation. This report provides an overview of the system and general capabilities as well as initial efforts to develop an automated workflow for liquid-liquid separations.

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38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY

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BibTeXRIS

Halstenberg, Phillip [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000260304503), Braatz, Jisue [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000212106342), Mahurin, Shannon Mark [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000337921631), Dai, Sheng [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000280463931). 2025-07-01. Automated Systems for Solvent Extraction. https://doi.org/10.2172/3013470

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