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@ARTICLE{Beu:878487,
author = {Beu, Kevin and Strub, Erik and Fonseca, Raúl O. C. and
Greef, Karin},
title = {{D}evelopment of a {B}i/{T}l separation scheme for the
proof of 209{B}i α-decay in old mineral samples},
journal = {Journal of radioanalytical and nuclear chemistry},
volume = {325},
number = {2},
issn = {1588-2780},
address = {Dordrecht [u.a.]},
publisher = {Springer Science + Business Media B.V},
reportid = {FZJ-2020-02876},
pages = {357 - 363},
year = {2020},
abstract = {The aim of this study is the development of a separation
technique for geological samples, namely bismuthinites, with
the goal to isolate Tl from excess amounts of Bi. This will
enable an isotopic measurement of the Tl content on the
ultra-trace level to identify a possible signature of Bi
α-decay. The separation of Tl from other elements like e.g.
Pb has been the subject of numerous studies. However, the
separation of ultra-traces of Tl from bulk Bi had not yet
been investigated sufficiently. This paper describes a
separation technique for the system Bi/Tl for application to
ultra-trace analysis. The separation technique uses a column
chromatographic system, utilizing the specific redox
behavior of Tl. The results show, that Tl can be
successfully separated in appearance of vast excess amounts
of Bi, showing recovery rates up to $96\%.$ The developed
procedure was successfully applied for the ultra-trace
analysis on a number of bimuthinites using ICP-MS. On base
of the results it is discussed, which prerequisites
bimuthinite samples must fulfill to be suitable for the
quantification of Bi alpha decay on base of the Tl isotopic
ratio.},
cin = {INM-5},
ddc = {540},
cid = {I:(DE-Juel1)INM-5-20090406},
pnm = {573 - Neuroimaging (POF3-573)},
pid = {G:(DE-HGF)POF3-573},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000546543700003},
doi = {10.1007/s10967-020-07267-6},
url = {https://juser.fz-juelich.de/record/878487},
}