Evaluation of New Organic Phase Extraction Procedures for Studying the Role of Terrestrial Humic Substances in the Speciation of Iron and Plutonium

Bulman, Robert A.; Szabó, Gyula; Wedgwood, Angela J.

doi:10.1007/978-3-642-74206-4_23

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Methods For Direct Speciation Analysis In the Lithosphere1

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1995

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“…The extracts are usually analyzed for Step Composition of leaching solution radionuclides without further separation of species. However, additional separations of the extracted species using gel chromatography [112], ultra-filtration [113], or co-precipitation [114] have been described. It is very important to avoid an extensive pre-treatment of the solid sample.…”

Section: Methods For Direct Speciation Analysis In the Lithospherementioning

confidence: 99%

Speciation of Radionuclides in the Environment

Gunten

Beneš

1995

Radiochimica Acta

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Methods for the determination of the speciation of radionuclides in aerosols, in aquatic solutions, in sediments, soils and rocks are reviewed. At present, most of the results about speciation are deduced from model calculations, model experiments, and separation of species (forms) of radionuclides, e.g., by sequential extraction procedures. Methods of direct determination of speciation of radionuclides (e.g., by laser induced spectroscopy) are in general not yet sensitive enough for a measurement of the very low concentrations of radionuclides in the environment. The methodological part of this paper is followed by a review of the very abundant literature about speciation of important radionuclides in the environment, i.e., in the atmosphere, hydrosphere and lithosphère. The review does not include the biosphere. Literature up to spring 1993 is included (with a few more recent additions).

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Section: Methods For Direct Speciation Analysis In the Lithospherementioning

confidence: 99%