Rapid column extraction method for actinides in soil

Maxwell, Sherrod L.; Culligan, Brian K.

doi:10.1007/s10967-006-0449-2

Cited by 53 publications

(27 citation statements)

References 5 publications

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“…After decantation and centrifugation, the precipitate was dissolved in 8 M HNO 3 . The oxidation state of Pu was adjusted to (IV) by adding 20 mg of NaNO 2 and heating at 70°C for 10 min.…”

Section: Actinides Separationmentioning

confidence: 99%

“…Pu and Am are commonly measured using a-spectrometry [2][3][4], which necessitates a complex preparation of the source before measurement in semi-conductor detectors. Besides, environmental samples often contain other a-emitter radionuclides (U, Th and their daughters products), at much higher activities than Pu and Am.…”

Section: Introductionmentioning

confidence: 99%

“…This new resin has been tested in a few studies for the extraction of Am. High recoveries have been reported even in complex sample matrices with an elevated content of Fe(III) [20,21].…”

Section: Introductionmentioning

confidence: 99%

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A new method for the determination of plutonium and americium using high pressure microwave digestion and alpha-spectrometry or ICP-SMS

Luisier

Corcho-Alvarado

Steinmann

et al. 2009

J Radioanal Nucl Chem

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Plutonium and americium are radionuclides particularly difficult to measure in environmental samples because they are a-emitters and therefore necessitate a careful separation before any measurement, either using radiometric methods or ICP-SMS. Recent developments in extraction chromatography resins such as Eichrom Ò TRU and TEVA have resolved many of the analytical problems but drawbacks such as low recovery and spectral interferences still occasionally occur. Here, we report on the use of the new Eichrom Ò DGA resin in association with TEVA resin and high pressure microwave acid leaching for the sequential determination of plutonium and americium in environmental samples. The method results in average recoveries of 83 ± 15% for plutonium and 73 ± 22% for americium (n = 60), and a less than 10% deviation from reference values of four IAEA reference materials and three samples from intercomparisons exercises. The method is also suitable for measuring 239 Pu in water samples at the lBq/l level, if ICP-SMS is used for the measurement.

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Section: Actinides Separationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A new method for the determination of plutonium and americium using high pressure microwave digestion and alpha-spectrometry or ICP-SMS

Luisier

Corcho-Alvarado

Steinmann

et al. 2009

J Radioanal Nucl Chem

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show abstract

“…TRU Resin was used in tandem with DGA Resin to effectively recover uranium and provide very high chemical recoveries for Am and Cm. The method first uses nitric acid -hydrofluoric acid to digest samples and remove silica, then uses an alkaline fusion to digest the samples, an iron hydroxide precipitation, followed by a cerium fluoride preconcentration step to remove the sample matrix and preconcentrate the actinides (Maxwell and Culligan, 2006). A version of this method to determine Pu and Am in 200 gram soil samples using acid leaching only was also reported (Maxwell and Culligan, 2008)., but a fusion of the soil leachate was still used in this process.…”

Section: Introductionmentioning

confidence: 99%

Rapid separation method for 237Np and Pu isotopes in large soil samples

Maxwell

Culligan

Noyes

2011

Applied Radiation and Isotopes

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A new rapid method for the determination of 237 Np and Pu isotopes in soil and sediment samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used for large soil samples. The new soil method utilizes an acid leaching method, iron/titanium hydroxide precipitation, a lanthanum fluoride soil matrix removal step, and a rapid column separation process with TEVA Resin. The large soil matrix is removed easily and rapidly using this two simple precipitations with high chemical recoveries and effective removal of interferences. Vacuum box technology and rapid flow rates are used to reduce analytical time.

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“…Chemical recoveries for Pu, Am and U of greater than 90% were reported [10]. A version of this method to determine Pu and Am in 200 gram soil samples using acid leaching only was also reported [11].…”

Section: Introductionmentioning

confidence: 99%

Rapid separation method for actinides in emergency soil samples

Maxwell¹,

Culligan

Noyes

2010

Radiochimica Acta

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A new rapid method for the determination of actinides in soil and sediment samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used for samples up to 2 grams in emergency response situations. The actinides in soil method utilizes a rapid sodium hydroxide fusion method, a lanthanum fluoride soil matrix removal step, and a streamlined column separation process with

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Rapid column extraction method for actinides in soil

Cited by 53 publications

References 5 publications

A new method for the determination of plutonium and americium using high pressure microwave digestion and alpha-spectrometry or ICP-SMS

A new method for the determination of plutonium and americium using high pressure microwave digestion and alpha-spectrometry or ICP-SMS

Rapid separation method for 237Np and Pu isotopes in large soil samples

Rapid separation method for actinides in emergency soil samples

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