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Title: Evaluation of synthetic water-soluble metal-binding polymers with ultrafiltration for selective concentration of americium and plutonium

Abstract

Routine counting methods and ICP-MS are unable to directly measure the new US Department of Energy (DOE) regulatory level for discharge waters containing alpha-emitting radionuclides of 30 pCi/L total alpha or the 0.05 pCi/L regulatory level for Pu or Am activity required for surface waters at the Rocky Flats site by the State of Colorado. This inability indicates the need to develop rapid, reliable, and robust analytical techniques for measuring actinide metal ions, particularly americium and plutonium. Selective separation or preconcentration techniques would aid in this effort. Water-soluble metal-binding polymers in combination with ultrafiltration are shown to be an effective method for selectively removing dilute actinide ions from acidic solutions of high ionic strength. The actinide-binding properties of commercially available water-soluble polymers and several polymers which have been reported in the literature were evaluated. The functional groups incorporated in the polymers were pyrrolidone, amine, oxime, and carboxylic, phosphonic, or sulfonic acid. The polymer containing phosphonic acid groups gave the best results with high distribution coefficients and concentration factors for {sup 241}Am(III) and {sup 238}Pu(III)/(IV) at pH 4 to 6 and ionic strengths of 0.1 to 4.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (United States)
Sponsoring Org.:
USDOE Assistant Secretary for Management and Administration, Washington, DC (United States)
OSTI Identifier:
661456
Report Number(s):
LA-UR-97-1189; CONF-970424-
ON: DE98003717; TRN: 98:007047
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: 4. international conference on methods and applications of radioanalytical chemistry, Kona, HI (United States), 6-11 Apr 1997; Other Information: PBD: [1997]
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; AMERICIUM 241; PLUTONIUM 238; ULTRAFILTRATION; POLYMERS; PHOSPHONIC ACIDS; SORPTIVE PROPERTIES; MAXIMUM PERMISSIBLE CONCENTRATION; WASTE WATER; SAMPLE PREPARATION; MATERIALS TESTING

Citation Formats

Smith, B F, Gibson, R R, Jarvinen, G D, Jones, M M, Lu, M T, Robison, T W, Schroeder, N C, and Stalnaker, N. Evaluation of synthetic water-soluble metal-binding polymers with ultrafiltration for selective concentration of americium and plutonium. United States: N. p., 1997. Web.
Smith, B F, Gibson, R R, Jarvinen, G D, Jones, M M, Lu, M T, Robison, T W, Schroeder, N C, & Stalnaker, N. Evaluation of synthetic water-soluble metal-binding polymers with ultrafiltration for selective concentration of americium and plutonium. United States.
Smith, B F, Gibson, R R, Jarvinen, G D, Jones, M M, Lu, M T, Robison, T W, Schroeder, N C, and Stalnaker, N. Wed . "Evaluation of synthetic water-soluble metal-binding polymers with ultrafiltration for selective concentration of americium and plutonium". United States. https://www.osti.gov/servlets/purl/661456.
@article{osti_661456,
title = {Evaluation of synthetic water-soluble metal-binding polymers with ultrafiltration for selective concentration of americium and plutonium},
author = {Smith, B F and Gibson, R R and Jarvinen, G D and Jones, M M and Lu, M T and Robison, T W and Schroeder, N C and Stalnaker, N},
abstractNote = {Routine counting methods and ICP-MS are unable to directly measure the new US Department of Energy (DOE) regulatory level for discharge waters containing alpha-emitting radionuclides of 30 pCi/L total alpha or the 0.05 pCi/L regulatory level for Pu or Am activity required for surface waters at the Rocky Flats site by the State of Colorado. This inability indicates the need to develop rapid, reliable, and robust analytical techniques for measuring actinide metal ions, particularly americium and plutonium. Selective separation or preconcentration techniques would aid in this effort. Water-soluble metal-binding polymers in combination with ultrafiltration are shown to be an effective method for selectively removing dilute actinide ions from acidic solutions of high ionic strength. The actinide-binding properties of commercially available water-soluble polymers and several polymers which have been reported in the literature were evaluated. The functional groups incorporated in the polymers were pyrrolidone, amine, oxime, and carboxylic, phosphonic, or sulfonic acid. The polymer containing phosphonic acid groups gave the best results with high distribution coefficients and concentration factors for {sup 241}Am(III) and {sup 238}Pu(III)/(IV) at pH 4 to 6 and ionic strengths of 0.1 to 4.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {12}
}

Conference:
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