3rd-INCC

Application of the CL resin to the separation and determination of Cl-36 and I-129 in environmental and decommissioning samples

19 Sept 2011, 17:30

1h 30m

Paladini (Città del Mare, Terrasini - Palermo - Sicily - Italy)

poster Nuclear Chemistry and Radiochemistry Poster Section 1

Speaker

Dr Aude Bombard (TrisKem International - FRANCE)

Description

The monitoring of long-lived radionuclides is of great importance for the surveillance of nuclear facilities such as power plants, waste repositories and reprocessing plants, during their operation as well as during their decommissioning. This is especially true for radionuclides of rather volatile elements such as chlorine and iodine, main interest being in Cl-36 and I-129. Measurement techniques frequently employed for the analysis of these radionuclides like e.g. liquid scintillation counting, require a thorough and selective sample preparation in order to give accurate results. Sample preparation methods employed are often elaborate and time consuming. An extraction chromatographic resin that allows extraction, and subsequent separation, of Cl-36 and I-129- from pretreated environmental and decommissioning samples was developed and characterized to overcome these issues and facilitate Cl-36 and I-129 analysis. Some results of the resin, characterization including weight distribution values (Dw values) of various cations and of Cl- and I- on Ag+ loaded CL resin, are presented. Several methods for the separation and determination of Cl-36 and I-129 have been developed based on determined resin characteristics and tested on spiked real samples. The results of these tests will be presented.