An automated micro-separation system for the chromatographic removal of uranium matrix for trace element analysis by ICP-OES

Wylie, E. Miller; Manard, Benjamin Thomas; Quarles, Jr., C. Derrick; Meyers, Lisa A.; Xu, Ning

doi:10.1016/j.talanta.2018.06.063

An automated micro-separation system for the chromatographic removal of uranium matrix for trace element analysis by ICP-OES

Journal Article · Wed Jun 20 00:00:00 EDT 2018 · Talanta

DOI:https://doi.org/10.1016/j.talanta.2018.06.063· OSTI ID:1458962

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Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Elemental Scientific, Inc., Omaha, NE (United States)

An automated, miniaturized, off-line separation technique is presented here using an Elemental Scientific Inc. microFAST MC system with UTEVA resin to extract the uranium matrix from its trace element impurities in aqueous media. The collected fractions were analyzed for ~30 trace elements using inductively coupled plasma – optical emission spectroscopy. Ten replicate samples were processed with a single column resulting in precision ranging from 3.3% to 6.2% relative standard deviation with regards to the trace element recoveries. Accuracy, with respect to trace element concentrations in the U₃O₈ Certified Reference Material 124-1, resulted in an average of 13.9% relative deviation while accuracy to the Canadian U3O8 reference material, CUP-2, resulted in an average relative deviation of 8.6%. In conclusion, the total separation time of this automated process was reduced to ~30 min per sample while employing a 0.5 mL UTEVA chromatographic resin bed and 2.5 mg of uranium.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1458962

Alternate ID(s):: OSTI ID: 1601300

Report Number(s):: LA-UR-18-22984

Journal Information:: Talanta, Journal Name: Talanta Journal Issue: C Vol. 189; ISSN 0039-9140

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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