Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Matthew S, Wellons"'
Autor:
Josh Wimpenny, Kyle M. Samperton, Pedro Sotorrio, Matthew S. Wellons, Spencer M. Scott, David Willingham, Kim Knight
Publikováno v:
Journal of Analytical Atomic Spectrometry. 38:827-840
In this study, we use laser ablation MC-ICP-MS as a rapid sampling tool to characterize the isotopic composition of uranium in μm-sized uranium oxide particles.
Autor:
Chelsie L. Beck, Ean S. Arnold, Evan J. Warzecha, Katherine Koh, Riane E. Stene, Timothy R. Pope, Neil J. Henson, Stephan K. Vogt, Matthew S. Wellons, Christopher A. Barrett
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 331:5237-5240
Autor:
Kevin J. Pastoor, Andrew J. Miskowiec, Jennifer L. Niedziela, Jonathan H. Christian, Bryan J. Foley, Sara B. Isbill, Ashley E. Shields, Alicia M. Manjón-Sanz, Erik C. Nykwest, Tyler L. Spano, Matthew S. Wellons, Jenifer C. Shafer, Mark P. Jensen
Publikováno v:
The Journal of Physical Chemistry C. 126:13256-13267
Autor:
Bryan J. Foley, Jonathan H. Christian, Christopher A. Klug, Eliel Villa-Aleman, Matthew S. Wellons, Michael DeVore, Nicholas Groden, Jason Darvin
Publikováno v:
Dalton Transactions. 51:6061-6067
When exposed to humid air over the course of two weeks, anhydrous UF4 undergoes surface corrosion to various O-bearing uranium complexes.
Autor:
Ashley E. Shields, Andrew Miskowiec, Kevin J. Pastoor, Matthew S. Wellons, Bryan J. Foley, Tyler L. Spano, Jennifer L. Niedziela, Luke L. Daemen, Sara Isbill, Jonathan H. Christian, Erik C. Nykwest, Jenifer C. Shafer, E. Novak, Mark P. Jensen
Publikováno v:
The Journal of Physical Chemistry C. 125:25007-25021
Uranium tetrafluoride hydrate (UFH) is formed by immersing anhydrous UF4 under water for 12 h. UFH is therefore clearly a chemical species of environmental concern, as anhydrous UF4 is an intermedi...
Autor:
Joseph M. Mannion, Matthew S. Wellons, Charles R. Shick, Glenn A. Fugate, Brian A. Powell, Scott M. Husson
Publikováno v:
Heliyon, Vol 3, Iss 1 (2017)
Degassing is a common preparation technique for rhenium filaments used for thermal ionization mass spectrometric analysis of actinides, including plutonium. Although optimization studies regarding degassing conditions have been reported, little work
Externí odkaz:
https://doaj.org/article/12597450c06c453c9825f31311ee5f77
Autor:
A. Taylor Baldwin, Matthew S. Wellons, Nicholas Groden, Christopher A. Klug, Jonathan H. Christian, Michael A. DeVore, Eliel Villa-Aleman, Bryan J. Foley
Publikováno v:
Dalton Transactions. 50:2462-2471
Uranium tetrafluoride (UF4) is an important intermediate in the production of UF6 and uranium metal. Room temperature hydrolysis of UF4 was investigated using a combination of Fluorine-19 nuclear magnetic resonance spectroscopy (19F NMR), Raman and i
Publikováno v:
Journal of the American Society for Mass Spectrometry. 32:8-13
Matrix-assisted ionization (MAI) demonstrates high sensitivity for a variety of organic compounds; however, few studies have reported the application of MAI for the detection and characterization of inorganic analytes. Trace-level uranium analysis is
Autor:
Eliel Villa-Aleman, Jason R. Darvin, Don D. Dick, Jonathan H. Christian, Bryan J. Foley, Matthew S. Wellons, Michael A. DeVore
Publikováno v:
Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES).
Vibrational and luminescence spectroscopy were used in the investigation of U and Pu-bearing compounds and soot from high explosives testing. Key spectroscopic signatures of UF4 and its hydrates, PuO2, and soot from different explosives will be prese
Autor:
Robert B. Cody, Joseph M. Mannion, Matthew S. Wellons, Joshua T. Hewitt, Samuel B. Koby, Kaitlin J. Coopersmith
Publikováno v:
Rapid Communications in Mass Spectrometry. 33:1695-1702
Rationale The ability to detect and quantify the presence of specific inorganic elements and complexes is essential for environmental monitoring and nuclear safeguards applications. In this work, paper spray ionization mass spectrometry was used for