Application of a solvent extraction procedure using di-2-ethyl hexyl phosphoric acid (HDEHP) for the separation of some transuranic elements in environmental samples

Murray, C.N.; Statham, Grant

doi:10.1007/bf02227032

Cited by 20 publications

(1 citation statement)

References 7 publications

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“…For longer-lived radionuclides, mass spectrometry offers many advantages. In what may be considered the "gold standard," Pu and Np isotopic data generated from thermal ionization mass spectrometry (TIMS) have been published for seawater samples as small as 4 L and not only include the 240 Pu/ 239 Pu ratio, but the minor ratios 241 Pu/ 239 Pu, and 242 (Aoyama et al 2000;Ballestra and Fukai 1983;Chamizo et al 2008;Chen et al 2001aChen et al , 2001bChen et al , 2002bHolm and Fukai 1976;Kenna 2002;La Rosa et al 2001;Lindahl et al 2010;Murray and Statham 1976):…”

Section: Introductionmentioning

confidence: 99%

Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program

Kenna

Masqué

Mas

et al. 2012

Limnology & Ocean Methods

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As part of the GEOTRACES Program, six laboratories participated in an intercalibration exercise on several anthropogenic radionuclides of interest. The effort was successful for 239,240Pu activity, 240Pu/239Pu isotope ratio, and 137Cs activity measured in filtered seawater samples from the Bermuda Atlantic Time Series station (BATS) and a site on the continental slope of the Northeastern U.S. A limited number of analyses were reported for 237Np, 241Am, 90Sr, and 238Pu in filtered seawater. Intercalibration of any of the isotopes of interest in filtered particulate matter was unsuccessful due to insufficient size of the samples distributed. Methods used were based on traditional radio-counting techniques and inductively coupled plasma mass spectrometry (ICP-MS). Although the majority of analyses were performed on samples ≥60 L, one lab demonstrated the ability to analyze several of the anthropogenic radionuclides on 10-20 L sample volumes using ICP-MS

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Section: Introductionmentioning

confidence: 99%

Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program

Kenna

Masqué

Mas

et al. 2012

Limnology & Ocean Methods

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Actinides and Other Alpha‐Emitters, Determination of

Vintró

Mitchell

2000

Encyclopedia of Analytical Chemistry

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To assay an actinide or other α‐emitter at the low concentrations encountered in many environmental samples necessitates chemical separation of the actinide of interest from the bulk matrix, purification by the elimination of other interferants, mounting onto a suitable substrate for counting, and quantification by radiometric, mass spectrometric or other means. In this contribution, the chain of analysis from sampling to counting is critically reviewed and many of the most important pitfalls and sources of error are highlighted. Specifically, the pretreatment, preconcentration, separation and purification steps required for the assay of thorium, uranium, neptunium, plutonium, americium and curium in a wide range of environmental matrices are examined in detail. Emphasis is given to the need for appropriate radiochemical yield monitors and to the practical application of ion exchange, solvent extraction and extraction chromatography in the purification of these elements. This is complemented by a description of methods for the preparation of quality sources suitable for counting by α‐spectrometry, liquid scintillation α‐spectrometry and mass spectrometry. In addition, an overview is given of the operational principles and systems used in α‐radiometry and mass spectrometry, including a discussion of the practical limits of detection and quantitation achievable with these systems. Finally, the importance of traceability and good quality assurance in precision actinide assay is emphasized.

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Improvements on radiochemical method for the determination of Am and Cm in typical waste streams from nuclear power plants

Gascón

Rodrı́guez

Rey

1996

Journal of Radioanalytical and Nuclear Chemistry, Articles

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Application of a solvent extraction procedure using di-2-ethyl hexyl phosphoric acid (HDEHP) for the separation of some transuranic elements in environmental samples

Cited by 20 publications

References 7 publications

Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program

Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program

Actinides and Other Alpha‐Emitters, Determination of

Improvements on radiochemical method for the determination of Am and Cm in typical waste streams from nuclear power plants

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