Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 259: Issue 3
The performance of k0-INAA in recent exercises on the certification of rare earth elements in bio-environmental materials
Authors:
F. De Corte Gent University Proeftuinstraat 86 Laboratory of Analytical Chemistry, Institute for Nuclear Sciences (INW) B-9000 Gent Belgium

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A. De Wispelaere Gent University Proeftuinstraat 86 Laboratory of Analytical Chemistry, Institute for Nuclear Sciences (INW) B-9000 Gent Belgium

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Pages:
401–408
Online Publication Date:
16 Aug 2006
Publication Date:
01 Mar 2004
Article Category:
Research Article
DOI:
https://doi.org/10.1023/b:jrnc.0000020908.21884.ac
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Abstract  

The performance of k0-INAA was studied for the determination of the rare earth elements (plus Th and U) in the certification of four new BCR CRM's: 667 Estuarine Sediment, 690 Calcareous Soil, 670 Aquatic Plant and 668 Mussel Tissue. Our results are critically compared with the (later on) certified values, revealing slight discrepancies for the organic matrices aquatic plant and mussel tissue. Although these discrepancies were thought to be associated with the special procedure followed for moisture content determination, no convincing explanation could be found. Mention is also made of problems that are affecting the accuracy and precision of our results, especially with respect to multiplet deconvolution or otherwise troublesome peak fitting, spectral interferences, reaction interferences (notably from 235U-fission) and the non-1/v thermal cross section behavior. Eventually, detection limits for the REEs (+ Th and U) are calculated in the four materials, allowing to evaluate the applicability of INAA to these types of bio-environmental matrices.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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