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Title: Characterization and Application of Superlig 620 Solid Phase Extraction Resin for Automated Process Monitoring of 90Sr

Abstract

Characterization of SuperLig® 620 solid phase extraction resin was performed in order to develop an automated on-line process monitor for 90Sr. The main focus was on strontium separation from barium, with the goal of developing an automated separation process for 90Sr in high-level wastes. High-level waste contains significant 137Cs activity, of which 137mBa is of great concern as an interference to the quantification of strontium. In addition barium, yttrium and plutonium were studied as potential interferences to strontium uptake and detection. A number of complexants were studied in a series of batch Kd experiments, as SuperLig® 620 was not previously known to elute strontium in typical mineral acids. The optimal separation was found using a 2M nitric acid load solution with a strontium elution step of ~0.49M ammonium citrate and a barium elution step of ~1.8M ammonium citrate. 90Sr quantification of Hanford high-level tank waste was performed on a sequential injection analysis microfluidics system coupled to a flow-cell detector. The results of the on-line procedure are compared to standard radiochemical techniques in this paper.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
969605
Report Number(s):
PNNL-SA-65586
Journal ID: ISSN 0236-5731; JRNCDM; 30400; KP1504010; TRN: US1000280
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry, 282(2):623-628
Additional Journal Information:
Journal Volume: 282; Journal Issue: 2; Journal ID: ISSN 0236-5731
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; STRONTIUM 90; ON-LINE MEASUREMENT SYSTEMS; EXTRACTION; ADSORBENTS; RESINS; SEPARATION PROCESSES; HIGH-LEVEL RADIOACTIVE WASTES; CESIUM 137; RADIOCHEMICAL ANALYSIS; Environmental Molecular Sciences Laboratory

Citation Formats

Devol, Timothy A, Clements, John P, Farawila, Anne F, O'Hara, Matthew J, Egorov, Oleg, and Grate, Jay W. Characterization and Application of Superlig 620 Solid Phase Extraction Resin for Automated Process Monitoring of 90Sr. United States: N. p., 2009. Web. doi:10.1007/s10967-009-0219-z.
Devol, Timothy A, Clements, John P, Farawila, Anne F, O'Hara, Matthew J, Egorov, Oleg, & Grate, Jay W. Characterization and Application of Superlig 620 Solid Phase Extraction Resin for Automated Process Monitoring of 90Sr. United States. https://doi.org/10.1007/s10967-009-0219-z
Devol, Timothy A, Clements, John P, Farawila, Anne F, O'Hara, Matthew J, Egorov, Oleg, and Grate, Jay W. 2009. "Characterization and Application of Superlig 620 Solid Phase Extraction Resin for Automated Process Monitoring of 90Sr". United States. https://doi.org/10.1007/s10967-009-0219-z.
@article{osti_969605,
title = {Characterization and Application of Superlig 620 Solid Phase Extraction Resin for Automated Process Monitoring of 90Sr},
author = {Devol, Timothy A and Clements, John P and Farawila, Anne F and O'Hara, Matthew J and Egorov, Oleg and Grate, Jay W},
abstractNote = {Characterization of SuperLig® 620 solid phase extraction resin was performed in order to develop an automated on-line process monitor for 90Sr. The main focus was on strontium separation from barium, with the goal of developing an automated separation process for 90Sr in high-level wastes. High-level waste contains significant 137Cs activity, of which 137mBa is of great concern as an interference to the quantification of strontium. In addition barium, yttrium and plutonium were studied as potential interferences to strontium uptake and detection. A number of complexants were studied in a series of batch Kd experiments, as SuperLig® 620 was not previously known to elute strontium in typical mineral acids. The optimal separation was found using a 2M nitric acid load solution with a strontium elution step of ~0.49M ammonium citrate and a barium elution step of ~1.8M ammonium citrate. 90Sr quantification of Hanford high-level tank waste was performed on a sequential injection analysis microfluidics system coupled to a flow-cell detector. The results of the on-line procedure are compared to standard radiochemical techniques in this paper.},
doi = {10.1007/s10967-009-0219-z},
url = {https://www.osti.gov/biblio/969605}, journal = {Journal of Radioanalytical and Nuclear Chemistry, 282(2):623-628},
issn = {0236-5731},
number = 2,
volume = 282,
place = {United States},
year = {Mon Nov 30 00:00:00 EST 2009},
month = {Mon Nov 30 00:00:00 EST 2009}
}