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Preconcentration of Uranium in Natural Waters for X-ray Fluorescence Analysis

  • L. R. Hathaway (a1) and G. W. James (a1)

Abstract

Use of Chelex-100 impregnated filter membranes for preconcentration of uranium in ground-water samples for XRF analysis leads to lower processing time, sample size, and detection limit than achieved in a batch extraction process. Data is presented, for potential effects of iron and organic matter in natural waters upon the recovery of uranium when using Chelex-100.

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1. Fauth, H., “Hydrogeochemical Reconnaissance Prospecting,” Uranium Exploration Methods, p. 209218, International Atomic Energy Agency, Vienna (1972).
2. Hathaway, L. R. and James, G. W., “Use of Chelating Ion-Exchange Resin in the Determination of Uranium in Ground Water by X-Ray Fluorescence,” Anal. Chem. 47, 2035-2037 (1975).
3. Garrels, R. M., Mineral Equilibria, p. 186, Harper (1960).
4. Hem, J. D., Study and Interpretation of the Chemical Characteristics of Natural Water, Geological Survey Water-Supply Paper 1473, 2 nd. ed., p. 114126 (1970).
5. Stumm, W. and Morgan, J. J., Aquatic Chemistry, p. 347, Wiley- Interscience (1970).
6. Florence, T. M. and Batley, G. E., “Trace Element Species in Seawater— I,” Talanta 23, 179186 (1976).

Preconcentration of Uranium in Natural Waters for X-ray Fluorescence Analysis

  • L. R. Hathaway (a1) and G. W. James (a1)

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