Separation of Cation Isotopes by Complexation with Crown Ethers

这个项目属于分析和表面化学领域，属于溶质萃取的子领域。Echegoyen教授将使用天然存在和合成制备的冠醚离子载体研究与提取选定同位素相关的溶液热力学。本研究将利用化学或电化学制备的阴离子自由基或蒽醌取代冠醚离子载体。用原子吸收光谱法和电子顺磁共振光谱法对这些物质与选定的阳离子同位素在水溶液中的萃取平衡进行定量分析。本研究结果将对同位素净化过程产生深远的影响。

This project is in the area of Analytical and Surface Chemistry and in the subfield of solute extraction. Professor Echegoyen will study the solution thermodynamics associated with the extraction of selected isotopes using naturally occurring and synthetically prepared crown ether ionophores. This research will use chemically or electrochemically prepared anion radicals or dianions of anthraquinone substituted crown ether ionophores. Extraction equilibria involving these species with selected cation isotopes from aqueous solution will be quantified using atomic absorption spectroscopy and electron paramagnetic resonance spectroscopy. The results obtained in this research would have a profound affect on isotope purification processes.