title: Preparation of water samples for proficiency testing on radionuclides.
abstract: The Institute of Nuclear Chemistry and Technology (INCT) procedure for preparation of water samples for proficiency testing on determination of (241)Am, (137)Cs, (239)Pu, (226)Ra and (90)Sr in water is presented. Natural waters were applied as the raw materials and spiked with the aforementioned radionuclides. The procedure of spiking water allows to prevent losses of the radionuclides and to assign property values from formulation. The main advantages of this procedure are (i) similarity of the test materials to the water samples routinely analysed by radioanalytical laboratories, and (ii) traceable assigned values with low uncertainties.
authors.affiliation: Institute of Nuclear Chemistry and Technology, Dorodna 16 street, 03-195 Warsaw, Poland. Electronic address: h.polkowska@ichtj.waw.pl.
authors.forename: H
authors.initials: H
authors.lastname: Polkowska-Motrenko
authors.affiliation: Institute of Nuclear Chemistry and Technology, Dorodna 16 street, 03-195 Warsaw, Poland.
authors.forename: L
authors.initials: L
authors.lastname: Fuks
authors.affiliation: Institute of Nuclear Chemistry and Technology, Dorodna 16 street, 03-195 Warsaw, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Kalbarczyk
authors.affiliation: Institute of Nuclear Chemistry and Technology, Dorodna 16 street, 03-195 Warsaw, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Dudek
authors.affiliation: Institute of Nuclear Chemistry and Technology, Dorodna 16 street, 03-195 Warsaw, Poland.
authors.forename: K
authors.initials: K
authors.lastname: Kulisa
authors.affiliation: Institute of Nuclear Chemistry and Technology, Dorodna 16 street, 03-195 Warsaw, Poland.
authors.forename: A
authors.initials: A
authors.lastname: Oszczak
authors.affiliation: Institute of Nuclear Chemistry and Technology, Dorodna 16 street, 03-195 Warsaw, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Zuba
keywords: Proficiency tests; Radionuclides; Water