Radiochemical separation of actinides from environmental samples for determination with DF-ICP-MS and alpha spectrometry
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Marin Ayranov
Summary
The purpose of this study was to develop an optimised sample preparation method for the determination of Pu, Am, and Cm in environmental samples, soils, and sediments, and to compare the sensitivities of DF-ICP-MS, alpha spectrometry, and liquid scintillation alpha spectrometry. Borate fusion was used for sample material digestion. Two methods based on TOPO liquid–liquid extraction and combination of TEVA and TRU extraction chromatography showed highest yields of 92.7% for Pu, 86.8% for Am, and 87.6% for Cm. The detection limits were between 0.014–0.034 Bq/kg for 239Pu, 0.014–0.093 Bq/kg for 240Pu, and 0.011–1.20 Bq/kg for 241Am. Analytical results for 238Pu, 239Pu, 240Pu, 241Pu and 241Am and their isotope ratios in certified reference materials (IAEA-135 and IAEA-300) indicated very good accuracy of the methods proposed.
© by Oldenbourg Wissenschaftsverlag, München
Artikel in diesem Heft
- Radiochemical separation of actinides from environmental samples for determination with DF-ICP-MS and alpha spectrometry
- A comparative evaluation of 238Pu determination in NIST-SRM-947-Pu by alpha spectrometry and thermal ionization mass spectrometry
- Microscale characterization of uranium(VI) silicate solids and associated neptunium(V)
- Diffusion and sorption of U(VI) in compacted bentonite studied by a capillary method
- Crystal structure of new uranyl oxalates (NH4)2[UO2(C2O4)2· H2O]·2H2O and (NH4)2-x(N2H5)x[(UO2)2(C2O4)3]·3H2O (x=0 and x=1). Comparison with other uranyl oxalates
- Extraction of U(VI) with unsymmetrical N-methyl-N-decylalkylamide in toluene
- The effect of water treatment on the presence of particle-bound 210Po and 210Pb in groundwater
- On the transport and speciation of ruthenium in high temperature oxidising conditions
- Speciation of Tc(IV) in chloride solutions by capillary electrophoresis
Artikel in diesem Heft
- Radiochemical separation of actinides from environmental samples for determination with DF-ICP-MS and alpha spectrometry
- A comparative evaluation of 238Pu determination in NIST-SRM-947-Pu by alpha spectrometry and thermal ionization mass spectrometry
- Microscale characterization of uranium(VI) silicate solids and associated neptunium(V)
- Diffusion and sorption of U(VI) in compacted bentonite studied by a capillary method
- Crystal structure of new uranyl oxalates (NH4)2[UO2(C2O4)2· H2O]·2H2O and (NH4)2-x(N2H5)x[(UO2)2(C2O4)3]·3H2O (x=0 and x=1). Comparison with other uranyl oxalates
- Extraction of U(VI) with unsymmetrical N-methyl-N-decylalkylamide in toluene
- The effect of water treatment on the presence of particle-bound 210Po and 210Pb in groundwater
- On the transport and speciation of ruthenium in high temperature oxidising conditions
- Speciation of Tc(IV) in chloride solutions by capillary electrophoresis
