99Technetium poses a difficult problem at multiple Department of Energy sites, where there are currently vast quantities in storage. 99Tc has a half-life of 2.3 x 105 years, thus it will have to be accounted for a very ...

FUNDAMENTAL STUDIES AND POTENTIAL APPLICATIONS OF CLOUD POINT EXTRACTIONAbstractby MELISSA ENSOR FREIDERICH, Ph.D.Washington State UniversityDECEMBER 2011Chair: Kenneth L. NashSeparation of the components of nuclear fuel ...

Paramagnetic cations serve as useful and efficient NMR probes of coordination environment and can also give insight into dynamics on the millisecond timescale. In an effort to extend the powerful analytical techniques ...

In advanced nuclear fuel reprocessing schemes, the TALSPEAK (Trivalent Actinide Lanthanide Separation with Phosphorus-reagent Extraction from Aqueous Komplexes) process has been proposed as a means to separate Am and Cm ...

Solvent extraction is a technique commonly used is the reprocessing of used nuclear fuel elements. It utilizes the partitioning of a metal ion between two immiscible phases, typically an acidic aqueous phase and a light ...

Solvent extraction has generally been the method of choice for the reprocessing of used nuclear fuel. Fundamentally, solvent extraction is based on the differences in solubility of chemical species dissolved in a biphasic ...

Complexation constants are typically determined in a fully aqueous solvent system. In literature, there has been a small amount of reported work where complexation constants have been determined in mixed solvents or fully ...

Detection of the actinides and cesium in the environment is important for a variety of applications ranging from environmental remediation to safeguards and nuclear forensics. The utilization of multiple different elemental ...

Methods to quantify activation products in complex samples are needed in areas such as nuclear safeguards, waste treatment and identification, environmental monitoring, and consequence management. Formation of activation ...

Rapid pre-concentration of trace lanthanide cations in aqueous solution has been achieved using mercury film electrodes. Although effective, this technique has shown minimal sample carryover when used to pre-concentrate ...