Cole Hexel Section Head - Nuclear Analytical Chemistry Contact HEXELCR@ORNL.GOV All Publications Nuclide Inventory Validation: Radiochemical Assay Data Quality and Modeling Challenges in Benchmark Models Development... New reference materials for trace-levels of actinide elements in plutonium... Direct analysis of cotton swipes for plutonium isotope determination by microextraction-ICP-MS Insights into secondary ion formation during dynamic SIMS analysis: Evidence from sputtering of laboratory synthesized uranium compounds with a high-energy O− primary beam on a NanoSIMS 50L Update on the High Precision Titration Method for Uranium Assay Supported by NBL Program Office... Direct Uranium Isotopic Analysis of Swipe Surfaces by Microextraction-ICP-MS New Capability at ORNL: High Precision Uranium Titration Rapid and automated separation of uranium ore concentrates for trace element analysis by inductively coupled plasma – optical emission spectroscopy/triple quadrupole mass spectrometry An approach to separating Pu, U, and Ti from high-purity graphite for isotopic analysis by MC-ICP-MS A new highly enriched 233U reference material for improved simultaneous determination of uranium amount and isotope amount ratios in trace level samples Determination of phosphorus and sulfur in uranium ore concentrates by triple quadrupole inductively coupled plasma mass spectrometry Exploring the use of thorium isotope compositions and concentrations as nuclear forensic signatures for uranium ore concentrates Sister Rod Destructive Examinations (FY20) Appendix D, Fission Gas Analysis, Fuel Rod Burnup and Isotopic Measurements Trace Elemental Analysis of Bulk Thorium Using an Automated Separation–Inductively Coupled Plasma Optical Emission Spectroscopy Methodology Exploration of ICP platforms for measuring elemental impurities in uranium ore concentrates Nuclear Analytical and Chemical Isotopics Laboratories Sample Analytical Plan for the Sister Rod Spent Nuclear Fuel Specimens. A preliminary investigation into the use of molecular oxide and hydride secondary ion relationships for improvement of the 236U/238U determination on a NanoSIMS 50L Inline gamma-spectrometry of fission product elements after rapid high-pressure ion chromatographic separation Determining P, S, Br, and I content in uranium by triple quadrupole inductively coupled plasma mass spectrometry Rare Earth Element Determination in Uranium Ore Concentrates Using Online and Offline Chromatography Coupled to ICP-MS RAPID: The Development and Application of a Hybrid High Pressure Ion Chromatography and Inductively Coupled Plasma Mass Spectrometry Method for the Direct Analysis of Irradiated Materials Establishing a High-Precision Titrimetric Laboratory at 91°µÍø to Support the NBL Program Office’s Mission A NanoSIMS 50 L Investigation into Improving the Precision and Accuracy of the 235U/238U Ratio Determination by Using the Molecular 235U16O and 238U16O Secondary Ions Evaluation and Specifications for In-Line Uranium Separations Using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) Detection for Trace Elemental Analysis Optimization of uranium and plutonium separations using TEVA and UTEVA cartridges for MC-ICP-MS analysis of environmental swipe samples Pagination First page « First Previous page ‹â¶Ä¹ Page 1 Current page 2 Page 3 Next page ›â¶Äº Last page Last » Key Links Organizations Physical Sciences Directorate Chemical Sciences Division Nuclear Analytical Chemistry Section