Preparative scale separation of thulium from erbium for neutron capture cross section measurements - Part: Preparative scale

Journal Article · Sat Jun 04 00:00:00 EDT 2016 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-016-4889-z· OSTI ID:1291232

Birnbaum, Eva R. ^[1]; Bene, Balazs J. ^[2]; Taylor, Wayne Allen ^[1]; Sudowe, Ralf ^[3]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
2. Univ. of Nevada, Las Vegas, NV (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
3. Univ. of Nevada, Las Vegas, NV (United States)

Here, this paper discusses the development of a separation method for isolation of Tm-171 from a half-gram irradiated erbium target in support of stockpile stewardship and astrophysics research. The developed procedure is based on cation exchange separation using alpha-hydroxyisobutyric acid (α-HIBA) as chelating agent. It is able to achieve either a decontamination factor of 1.4(4) × 10⁵ with 68.9(3) % recovery or 95.4(3) % recovery with a decontamination factor of 5.82(7) × 10³ for a mock 500-mg target containing 17.9 mg thulium in a single pass-through at room temperature.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Laboratory Directed Research and Development (LDRD) Program
• Grant/Contract Number: AC52-06NA25396
• OSTI ID: 1291232
• Report Number(s): LA-UR-16-22041
• Journal Information: Journal of Radioanalytical and Nuclear Chemistry, Journal Name: Journal of Radioanalytical and Nuclear Chemistry; ISSN 0236-5731
• Publisher: Springer
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
171Tm
lanthanide separation
thulium erbium
preparative HPLC
cation exchange chromatography