Recent advances in the development of extraction chromatographic materials for the isolation of radionuclides from biological and environmental samples.

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The determination of low levels of radionuclides in environmental and biological samples is often hampered by the complex and variable nature of the samples. One approach to circumventing this problem is to incorporate into the analytical scheme a separation and preconcentration step by which the species of interest can be isolated from the major constituents of the sample. Extraction chromatography (EXC), a form of liquid chromatography in which the stationary phase comprises an extractant or a solution of an extractant in an appropriate diluent coated onto an inert support, provides a simple and efficient means of performing a wide variety ... continued below

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9 p.

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Dietz, M. L. November 30, 1998.

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Description

The determination of low levels of radionuclides in environmental and biological samples is often hampered by the complex and variable nature of the samples. One approach to circumventing this problem is to incorporate into the analytical scheme a separation and preconcentration step by which the species of interest can be isolated from the major constituents of the sample. Extraction chromatography (EXC), a form of liquid chromatography in which the stationary phase comprises an extractant or a solution of an extractant in an appropriate diluent coated onto an inert support, provides a simple and efficient means of performing a wide variety of metal ion separations. Recent advances in extractant design, in particular the development of extractants capable of metal ion recognition or of strong complex formation even in acidic media, have substantially improved the utility of the method. For the preconcentration of actinides, for example, an EXC resin consisting of a liquid diphosphonic acid supported on a polymeric substrate has been shown to exhibit extraordinarily strong retention of these elements from acidic chloride media. This resin, together with other related materials, can provide the basis of a number of efficient and flexible schemes for the separation and preconcentration of radionuclides form a variety of samples for subsequent determination.

Physical Description

9 p.

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INIS; OSTI as DE00010654

Medium: P; Size: 9 pages

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  • International Solvent Extraction Conference (ISEC '99), Barcelona (ES), 07/11/1999--07/16/1999

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  • Report No.: ANL/CHM/CP-95681
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10654
  • Archival Resource Key: ark:/67531/metadc624097

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • November 30, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 11, 2017, 9:04 p.m.

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Dietz, M. L. Recent advances in the development of extraction chromatographic materials for the isolation of radionuclides from biological and environmental samples., article, November 30, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc624097/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.