Universität zu Köln

Beu, Kevin, Strub, Erik ORCID: 0000-0002-4136-2871, Fonseca, Raul O. C. ORCID: 0000-0002-0897-4884 and Greef, Karin (2020). Development of a Bi/Tl separation scheme for the proof of(209)Bi alpha-decay in old mineral samples. J. Radioanal. Nucl. Chem., 325 (2). S. 357 - 364. DORDRECHT: SPRINGER. ISSN 1588-2780

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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 alpha-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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Beu, Kevin UNSPECIFIED UNSPECIFIED UNSPECIFIED Strub, Erik UNSPECIFIED orcid.org/0000-0002-4136-2871 UNSPECIFIED Fonseca, Raul O. C. UNSPECIFIED orcid.org/0000-0002-0897-4884 UNSPECIFIED Greef, Karin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-326769
DOI:	10.1007/s10967-020-07267-6
Journal or Publication Title:	J. Radioanal. Nucl. Chem.
Volume:	325
Number:	2
Page Range:	S. 357 - 364
Date:	2020
Publisher:	SPRINGER
Place of Publication:	DORDRECHT
ISSN:	1588-2780
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language THALLIUM Multiple languages Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science & Technology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/32676