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Characterization of an extraction chromatographic resin for the separation and determination of 36Cl and 129I

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The monitoring of long-lived radionuclides is of great importance in the context of the surveillance of nuclear facilities, during their operation as well as during their decommissioning. This is especially true for radionuclides of rather volatile elements, such as chlorine and iodine, the main interest being in 36Cl and 129I. Liquid Scintillation Counting (LSC) is a widely used measurement technique especially for the determination of 36Cl that requires a thorough and selective sample preparation in order to give accurate results. Sample preparation methods frequently employed such as volatilization and/or repeated precipitation steps can be rather elaborate and time consuming. Therefore, an attempt has been made to develop an ‘easy to use’ extraction chromatographic resin that allows extraction, and subsequent separation, of chloride and iodide from pretreated environmental and decommissioning samples for their determination via LSC. First results of the characterization of the resin including D w values of Cl, I and potential interferents, and of the method development are presented as well as the result of the analysis of a simulated real sample.

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Correspondence to Steffen Happel.

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Zulauf, A., Happel, S., Mokili, M.B. et al. Characterization of an extraction chromatographic resin for the separation and determination of 36Cl and 129I. J Radioanal Nucl Chem 286, 539–546 (2010).

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