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[en] Regular bodies, in particular in Europe, demand obtaining lower and lower detection limits (DL) especially for the determination of actinides in soil samples. German laboratories for example are requested to obtain detection limits of 10 mBq/kg dry matter for Am and Pu Isotopes within the IMIS surveillance program and even lower detection limits for radioecological studies. Requested detection limits can only be met by increasing the size of the analyzed samples to up to 30 g or even 100 g of dry matter while obtaining high chemical yields and alpha spectra with sufficiently high peak resolution. Large sample sizes like these represent a significant challenge for radiochemical separation methods, with respect to elimination of matrix elements as well as with respect to removing potential interferents. This poster summarizes some methods for the analysis of actinides and Sr in large soil samples based on the use of extraction chromatography. (authors)
Source
Kundas, S.P.; Poznyak, S.S. (International A. Sakharov environmental univ., Minsk (Belarus)); Ministerstvo obrazovaniya Respubliki Belarus', Minsk (Belarus); Ministerstvo prirodnykh resursov i okhrany okruzhayushchej sredy Respubliki Belarus', Minsk (Belarus); Departament po likvidatsii posledstvij katastrofy na Chernobyl'skoj AEhS Ministerstva po chrezvychainym situatsiyam Respubliki Belarus', Minsk (Belarus); Obshchestvennyj sovet Bazovoj organizatsii po ehkologicheskomu obrazovaniyu stran SNG, Minsk (Belarus); Tsentr Vsemirnogo Zdorov'ya 'Velikie Ozera' Illinojskogo Universiteta, Chikago (United States); International A. Sakharov environmental univ., Minsk (Belarus); 486 p; ISBN 978-985-551-002-5; 
; May 2012; p. 226; 12. International scientific conference: 'Sakharov readings 2012: Environmental problems of the XXI century'; 12. Mezhdunarodnaya nauchnaya konferentsiya 'Sakharovskie chteniya 2012 goda: ehkologicheskie problemy XXI veka'; Minsk (Belarus); 17-18 May 2012
; May 2012; p. 226; 12. International scientific conference: 'Sakharov readings 2012: Environmental problems of the XXI century'; 12. Mezhdunarodnaya nauchnaya konferentsiya 'Sakharovskie chteniya 2012 goda: ehkologicheskie problemy XXI veka'; Minsk (Belarus); 17-18 May 2012