National Energy Technology Laboratory , United States, Department of Energy, P.O. Box 10940, Pittsburgh , Pennsylvania 15236 , United States.
Department of Chemistry , University of Pittsburgh , 219 Parkman Avenue , Pittsburgh , Pennsylvania 15260 , United States.
ACS Sens. 2019 Aug 23;4(8):1986-1991. doi: 10.1021/acssensors.9b01000. Epub 2019 Jul 30.
Rare earth elements (REEs) are strategically important for national security and advanced technologies. Consequently, significant effort has been devoted towards increasing REE domestic production, including the extraction of REEs from coal, coal combustion byproducts, and their associated waste streams such as acid mine drainage. Analytical techniques for rapid quantification of REE content in aqueous phases can facilitate REE recovery through rapid identification of high-value waste streams. In this work, we show that BioMOF-100 can be used as a fluorescent-based sensitizer for emissive REE ion detection in water, providing rapid (<10 min) analysis times and sensitive detection (parts-per-billion detection limits) for terbium, dysprosium, samarium, europium, ytterbium, and neodymium, even in the presence of acids or secondary metals.
稀土元素 (REEs) 对国家安全和先进技术具有重要的战略意义。因此，人们投入了大量精力来提高国内 REE 的产量，包括从煤、煤燃烧的副产品以及相关的废物流（如酸性矿山排水）中提取 REE。用于快速定量水相中的 REE 含量的分析技术可以通过快速识别高价值废物流来促进 REE 的回收。在这项工作中，我们表明 BioMOF-100 可以用作荧光基铽、镝、钐、铕、镱和钕离子检测的敏化剂，即使在存在酸或二级金属的情况下，也能提供快速 (<10 min) 的分析时间和对镝、镝、钐、铕、镱和钕的灵敏检测（十亿分之几的检测限）。
