title: (210)Bi - from interference to advantage in (210)Pb determination with liquid scintillation counter.
abstract: A novel method for determination of (210)Pb activity concentration using a liquid scintillation counter (LSC) in environmental samples is presented. After radiochemical separation of (210)Pb on Eichrom Sr Resin column, the decay product (210)Bi starts to in-grow and interfere with the (210)Pb during measurement with LSC. Instead of eliminating this interference, a novel method utilises (210)Bi in-growth to improve the detection efficiency and subsequently to lower the minimum detectable activity (MDA). This allows for substantial reduction of the MDA compared to conventional methods.
authors.affiliation: Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia. Electronic address: marko.strok@ijs.si.
authors.forename: Marko
authors.initials: M
authors.lastname: Štrok
authors.affiliation: Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
authors.forename: Borut
authors.initials: B
authors.lastname: Smodiš
authors.affiliation: Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia.
authors.forename: Darja
authors.initials: D
authors.lastname: Mazej
mesh_terms: D001729:Bismuth / Q000032:analysis* / Q000592:standards*; D007856:Lead Radioisotopes / Q000032:analysis* / Q000592:standards*; D058996:Quality Improvement; D011868:Radioisotopes / Q000032:analysis / Q000592:standards; D015203:Reproducibility of Results; D012588:Scintillation Counting / Q000379:methods* / Q000592:standards*; D012680:Sensitivity and Specificity
chemical_list: D007856:Lead Radioisotopes; D011868:Radioisotopes; D001729:Bismuth
keywords: (210)Bi; (210)Pb; Liquid scintillation counter