title: Determination of ultra-low concentrations of Pb-210 in Antarctic glacier with cation exchange resins filter--results, problems and perspectives.
abstract: In this paper, we describe a new, reliable and simple method to determine 210Pb concentration in ice-core samples, based on "Radium 3M" filters (USA). The advantages are well-known chemical yield, simplified retention procedure and measurement by low-energy Ge gamma spectrometry. We compare the results with those obtained by MN 616 LSA-50 filters (Germany). The method permits us to determine activity concentrations down to 30 mBq/l. We proved the efficiency and applicability of the method in the study of ice cores drilled in Livingston Island's glacier in Antarctica.
authors.affiliation: University of Luxemburg, Ministry of Environment and Water of Bulgaria, 162A, avenue de la Faïencerie, Luxembourg L-1511, Luxembourg. tosheva@cu.lu
authors.forename: Z
authors.initials: Z
authors.lastname: Tosheva
authors.forename: A
authors.initials: A
authors.lastname: Kies
authors.forename: M
authors.initials: M
authors.lastname: Klosen
authors.forename: K
authors.initials: K
authors.lastname: Veltchev