Studies of Flerovium and Element 115 Homologs with Macrocyclic Extractants

Despotopulos, John D.

doi:10.2172/1184155

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Reagents and Materials1

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2016

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“…The tracer solutions of 212 Pb and 113 Sn were prepared with activity concentrations ranging from 2 to 10 cps per 20 lL. The 232 U (legacy material, Lawrence Livermore National Laboratory (LLNL)) decay chain was used to obtain 212 Pb as a tracer for all studies by milking the 212 Pb from a generator [22]. The 113 Sn tracer was produced at the Center for Accelerator Mass Spectrometry (CAMS) at LLNL via the nat In(p,n) 113 Sn reaction.…”

Section: Reagents and Materialsmentioning

confidence: 99%

Characterization of the homologs of flerovium with crown ether based extraction chromatography resins: studies in hydrochloric acid

Despotopulos

Kmak

Gharibyan

et al. 2016

J Radioanal Nucl Chem

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A crown-ether-based extraction chromatography resin, Eichrom Pb resin, was characterized for separations of flerovium (Fl) homologs, specifically Pb and Sn. The batch uptake of Pb(II) and Sn(IV) radionuclides was determined from an HCl matrix. Both Pb(II) and Sn(IV) are strongly retained on the resin at different HCl concentrations. The affinity for Pb(II) decreases with increasing HCl concentration while Sn(IV) uptake increases. Extraction kinetics for Pb(II) and Sn(IV) were examined and show suitable uptake on the second time scale. Separation methods for the isolation of individual homologs, Pb(II) and Sn(IV), have been established using 2 mL pre-packed vacuum flow Pb resin columns.

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Section: Reagents and Materialsmentioning

confidence: 99%