Chelating resins: Sorption characteristics and radioanalytical applications
Conference
·
OSTI ID:370663
- Eastern Michigan Univ., Ypsilanti, MI (United States)
The chelating resin Dowex A1 and its purified form, Chelex 100, contains the iminodiacetate functional group. The resin can exchange cations from solutions of high pH and anions from low pH solutions. Further, the iminodiacetate functional group provides chelating capability leading to special selectivity for multivalent ions such as Sb(V) and Hg(II). A systematic study of the sorption characteristics of Chelex 100 was initiated in our laboratory. The results obtained thus far indicate that Sb(V) and Hg(II) have high distribution coefficient (K{sub d}) values in acid chloride solutions. Results obtained for the sorption of a number of ions on Chelex 100 are compared with the sorption values reported for other resins. A radiochemical separation procedure was developed for the determination of Hg by neutron activation analysis using sorption onto Chelex 100. Potential radioanalytical applications of the results will be discussed.
- OSTI ID:
- 370663
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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