Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Joseph M. Mannion"'
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
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:
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
Publikováno v:
Talanta. 189:502-508
A new sample loading procedure was developed for isotope measurements of ultra-trace amounts of Pu with thermal ionization mass spectrometry (TIMS) that is based on a polymer thin film architecture. The goals were to simplify single filament TIMS sam
Publikováno v:
Analytical Chemistry. 89:8638-8642
A new sample loading procedure was developed for isotope ratio measurements of ultratrace amounts of plutonium with thermal ionization mass spectrometry (TIMS). The goal was to determine the efficacy of a polymer fiber architecture for TIMS sample lo
Autor:
Charles R. Shick, Matthew S. Wellons, Brian A. Powell, Glenn A. Fugate, Joseph M. Mannion, Scott M. Husson
Publikováno v:
Talanta. 168:183-187
This communication presents findings on the effect of rhenium filament oxidation on thermal ionization mass spectrometry (TIMS) analyses of plutonium. Additionally, the roles of atmospheric humidity and carburization on the oxidation characteristics
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 307:2339-2345
The objective of this work was to prepare a novel substrate for the simultaneous concentration of actinides and sample preparation for alpha spectroscopy. Substrate preparation involved forming ultrathin films (10–180 nm) of quaternary amine anion-
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 307:2333-2338
Anion-exchange polymer thin films (~150 nm) were coated onto silicon substrates and utilized for rapid concentration and radioanalytical analyses of actinide complexes (PuCl6 2−, Pu(NO3)6 2−). Batch uptake studies were performed using inductively
Publikováno v:
Langmuir. 25:9671-9676
Binary polymer nanoparticles were synthesized by the reprecipitation of poly(4-vinylpyridine) in the presence of poly(diallyldimethylammonium chloride) and further used to make polymer-coated Ag nanoparticles. Polymer shells around Ag nanoparticles w