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Title: RAPID SEPARATION METHOD FOR ACTINIDES IN EMERGENCY AIR FILTER SAMPLES

A new rapid method for the determination of actinides and strontium in air filter samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used in emergency response situations. The actinides and strontium in air filter method utilizes a rapid acid digestion method and a streamlined column separation process with stacked TEVA, TRU and Sr Resin cartridges. Vacuum box technology and rapid flow rates are used to reduce analytical time. Alpha emitters are prepared using cerium fluoride microprecipitation for counting by alpha spectrometry. The purified {sup 90}Sr fractions are mounted directly on planchets and counted by gas flow proportional counting. The method showed high chemical recoveries and effective removal of interferences. This new procedure was applied to emergency air filter samples received in the NRIP Emergency Response exercise administered by the National Institute for Standards and Technology (NIST) in April, 2009. The actinide and {sup 90}Sr in air filter results were reported in {approx}4 hours with excellent quality.
Authors:
; ;
Publication Date:
OSTI Identifier:
972784
Report Number(s):
SRNS-STI-2010-00069
Journal ID: ISSN 0969-8043; ARISEF; TRN: US201006%%227
DOE Contract Number:
DE-AC09-08SR22470
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Radiation and Isotopes
Research Org:
SRS
Sponsoring Org:
DOE
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ACTINIDES; AIR FILTERS; ALPHA SPECTROSCOPY; CERIUM FLUORIDES; DIGESTION; FLOW RATE; GAS FLOW; REMOVAL; RESINS; SAVANNAH RIVER PLANT; STRONTIUM