Analytical Chemistry · 2007 · 39 citations · 27 references
EngineeringChemical Engineering SeparationsChemistryChemical EngineeringSeparation SciencePlutonium SeparationAutomatic MethodWater TreatmentAnalytical ChemistrySeparation TechniqueNew ProcedureAdvanced SeparationAutomatic SeparationChromatographyPreconcentration UsingSeparation TechnologyMultiphase FlowTru-resin AllowsExtractive MetallurgyMass SpectrometryRadioanalytical ChemistryMedicine
A new procedure for automatic separation and preconcentration of 241Am and 239+240Pu from interfering matrixes using transuranide (TRU)-resin is proposed. Combination of the multisyringe flow injection analysis and multipumping flow system techniques with the TRU-resin allows carrying out the sampling treatment and separation in a short time using large sample volumes. Americium is eluted from the column with 4 mol L(-1) hydrochloric acid, and then plutonium is separated via on-column Pu(IV) reduction to Pu(III) with titanium(III) chloride. The corresponding alpha activities are measured off-line, with a relative standard deviation of 3% and a lower limit of detection of 0.004 Bq mL(-1), by using a multiplanchet low-background proportional counter.
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