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Showing 1 to 4 of 4 entries
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High Useful Yield and Isotopic Analysis of Uranium by Resonance Ionization Mass Spectrometry.

Analytical chemistry

Savina MR, Isselhardt BH, Kucher A, Trappitsch R, King BV, Ruddle D, Gopal R, Hutcheon I.
PMID: 28485963
Anal Chem. 2017 Jun 06;89(11):6224-6231. doi: 10.1021/acs.analchem.7b01204. Epub 2017 May 24.

Useful yields from resonance ionization mass spectrometry can be extremely high compared to other mass spectrometry techniques, but uranium analysis shows strong matrix effects arising from the tendency of uranium to form strongly bound oxide molecules that do not...

New Resonance Ionization Mass Spectrometry Scheme for Improved Uranium Analysis.

Analytical chemistry

Savina MR, Trappitsch R, Kucher A, Isselhardt BH.
PMID: 30032601
Anal Chem. 2018 Sep 04;90(17):10551-10558. doi: 10.1021/acs.analchem.8b02656. Epub 2018 Aug 13.

Resonance ionization mass spectrometry (RIMS) combines tunable laser spectroscopy with mass spectrometry to provide a high-efficiency means of analyzing solid materials. We previously showed a very high useful yield of 24% for analysis of uranium using three lasers to...

Effects of Plume Hydrodynamics and Oxidation on the Composition of a Condensing Laser-Induced Plasma.

The journal of physical chemistry. A

Weisz DG, Crowhurst JC, Finko MS, Rose TP, Koroglu B, Trappitsch R, Radousky HB, Siekhaus WJ, Armstrong MR, Isselhardt BH, Azer M, Curreli D.
PMID: 29388772
J Phys Chem A. 2018 Feb 15;122(6):1584-1591. doi: 10.1021/acs.jpca.7b11994. Epub 2018 Feb 01.

High-temperature chemistry in laser ablation plumes leads to vapor-phase speciation, which can induce chemical fractionation during condensation. Using emission spectroscopy acquired after ablation of a SrZrO

Improving precision in resonance ionization mass spectrometry: influence of laser bandwidth in uranium isotope ratio measurements.

Analytical chemistry

Isselhardt BH, Savina MR, Knight KB, Pellin MJ, Hutcheon ID, Prussin SG.
PMID: 21410136
Anal Chem. 2011 Apr 01;83(7):2469-75. doi: 10.1021/ac102586v. Epub 2011 Mar 16.

The use of broad bandwidth lasers with automated feedback control of wavelength was applied to the measurement of (235)U/(238)U ratios by resonance ionization mass spectrometry (RIMS) to decrease laser-induced isotopic fractionation. By broadening the bandwidth of the first laser...

Showing 1 to 4 of 4 entries