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Chelating Ion Exchange Resins and X-Ray Fluorescence

Published online by Cambridge University Press:  06 March 2019

Donald E. Leyden
Donald E. Leyden*
Affiliation:
Department of Chemistry, University of Georgia, Athens, Georgia 30602
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Abstract

Functional groups which form chelate compounds with metal ions have long been of analytical usefulness. Such compounds have served as titrants, precipitating reagents, extractants, and as ionogenic groups on ion exchange resins. These ion exchange resins often have high distribution coefficients which enable the quantitative extraction of metal ions from solution in a single batch treatment with the resin. This report describes the application of chelating resins to sampling and determination of certain trace metals using x-ray fluorescence. Two commercial resins will be discussed. Chelex- 100 (Bio Rad) is a resin containing iminodiacetic acid functional groups and has chelation chemistry quite similar to EDTA. NMRR (Srafion) is a resin containing a functional site selective for gold, platinum metals, mercuric ions and methyl mercury.

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Type
Research Article
Information
Advances in X-Ray Analysis , Volume 17: Twenty-Second Annual Conference on Applications of X-ray Analysis, August 22-24, 1973 , 1973, pp. 293 - 301
Copyright
Copyright © International Centre for Diffraction Data 1973

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