Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Determination of picogram amounts of Technetium-99 by resin bead mass spectrometric isotope dilution

Journal Article · · Anal. Chem.; (United States)
DOI:https://doi.org/10.1021/ac50054a027· OSTI ID:5313942
 [1];
  1. E.I. duPont de Nemours and Co., Aiken, SC
An improved isotope dilution mass spectrometric technique has been developed for the analysis of /sup 99/Tc in environmental samples. After spiking with /sup 97/Tc, technetium is isolated from the sample by sequential ion-exchange chromatography and ion-association solvent extraction. The isolated technetium is finally concentrated onto a pair of anion exchange beads (diameter approx. 0.3 mm). The beads are individually analyzed on rhenium V filaments of a surface-ionization mass spectrometer. Determination of as little as 1 pg (0.017 pCi) has been achieved through the enhanced ionization efficiency afforded by the resin bead source. /sup 99/Tc has been quantified in several environmental samples taken at the Savannah River Plant (SRP) site (a nuclear materials production complex) and its aqueous /sup 99/Tc emission has been estimated. 3 figures, 3 tables.
DOE Contract Number:
AC09-76SR00001
OSTI ID:
5313942
Journal Information:
Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 52:4; ISSN ANCHA
Country of Publication:
United States
Language:
English