Authors:
W. Burnett Florida State University Environmental Radioactivity Measurement Facility, Department of Oceanography 32306-3048 Tallahassee FL USA

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D. Corbett Florida State University Environmental Radioactivity Measurement Facility, Department of Oceanography 32306-3048 Tallahassee FL USA

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M. Schultz Florida State University Environmental Radioactivity Measurement Facility, Department of Oceanography 32306-3048 Tallahassee FL USA

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E. Horwitz Argonne National Laboratory Chemistry Division 60439 Argonne Illinois USA

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R. Chiarizia Argonne National Laboratory Chemistry Division 60439 Argonne Illinois USA

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M. Dietz Argonne National Laboratory Chemistry Division 60439 Argonne Illinois USA

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Anil Thakkar Eichrom Industries Inc. 8205 South Cass Avenue 60561 Darien Illinois USA

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M. Fern Eichrom Industries Inc. 8205 South Cass Avenue 60561 Darien Illinois USA

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Abstract  

The analysis of environmental samples for low levels of U, Pu, Am and other actinide elements is often hampered by sample-dependent problems involving the composition and/or mineralogy of specific samples. While relatively small samples (1–2 g of soil or 1–2 of water) are required to reach the extremely low detection limits occasionally mandated for environmental monitoring. One approach to avoid the troublesome and often inexplicable problems collectively referred to as matrix effects is to pre-concentrate actinides into a common form that would then behave uniformly and predictably during a subsequent separation scheme. Recently, a new extraction chromatographic resin based on diphosphonate chemistry was developed at Argonne National Laboratory. This resin commercialized as Eichrom's Actinide Resin, exhibits extremely high affinity for actinide elements even in the presence of high concentrations of salts. We have measured the uptake of actinides by the Dipex® extractant from natural waters and natural matrix soil standards. Water samples have been analyzed for gross -activities and gave results that compared favorably to the traditional approach. In addition, we have obtained good recoveries and excellent separations for soil samples as judged by resolution on the -spectra and the complete absence of interfering energies.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)