title: Different methods for tritium determination in surface water by LSC.
abstract: The main aim of this paper was to compare different methods of preparing water samples for tritium analysis by ultra-low-level background liquid scintillation counter, Quantulus 1220. Three methods of sample preparation for low-level tritium measurement have been implemented in the Nuclear Physics Laboratory in Novi Sad: electrolytic enrichment, direct method without electrolytic enrichment and sample Oxidizer 307 method. The examined fresh water samples were rainfall collected during 6 months and water from a stream in the Vinča nuclear research center collected over 3 months. The obtained results using these three methods showed satisfying agreement. The appropriate measuring time by LSC for each sample prepared according to different methods has been determined.
authors.affiliation: University of Novi Sad, Faculty of Sciences, Department of Physics, Serbia. jovana.nikolov@df.uns.ac.rs
authors.forename: Jovana
authors.initials: J
authors.lastname: Nikolov
authors.forename: Natasa
authors.initials: N
authors.lastname: Todorovic
authors.forename: Marija
authors.initials: M
authors.lastname: Jankovic
authors.forename: Marija
authors.initials: M
authors.lastname: Vostinar
authors.forename: Istvan
authors.initials: I
authors.lastname: Bikit
authors.forename: Miroslav
authors.initials: M
authors.lastname: Veskovic