Authors:
P. De Regge International Atomic Energy Agency Wagramer Strasse 5 P.O. Box 100 A-1400 Vienna Austria

Search for other papers by P. De Regge in
Current site
Google Scholar
PubMed
Close
,
Z. Radecki International Atomic Energy Agency Wagramer Strasse 5 P.O. Box 100 A-1400 Vienna Austria

Search for other papers by Z. Radecki in
Current site
Google Scholar
PubMed
Close
,
J. Moreno International Atomic Energy Agency Wagramer Strasse 5 P.O. Box 100 A-1400 Vienna Austria

Search for other papers by J. Moreno in
Current site
Google Scholar
PubMed
Close
,
K. Burns International Atomic Energy Agency Wagramer Strasse 5 P.O. Box 100 A-1400 Vienna Austria

Search for other papers by K. Burns in
Current site
Google Scholar
PubMed
Close
,
G. Kis-Benedek International Atomic Energy Agency Wagramer Strasse 5 P.O. Box 100 A-1400 Vienna Austria

Search for other papers by G. Kis-Benedek in
Current site
Google Scholar
PubMed
Close
, and
R. Bojanowski Polish Academy of Sciences Institute of Oceanology 81-712 Sopot Poland

Search for other papers by R. Bojanowski in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract  

The results from numerous intercomparison exercises and proficiency tests indicate that the measurement of 90Sr in solid environmental matrices poses a problem to many analysts. The causes of the observed scatter of analytical results are not well understood and therefore difficult to remedy. In order to assess the effect of various analytical operations and measurement routines on the quality of the 90Sr data, the IAEA's Analytical Control Services have organised a proficiency test using a mineral sample spiked at three different levels with known amounts of 90Sr. This proficiency test generated considerable interest from the radioanalytical community as a total of 192 sets of samples were distributed to 158 radioanalytical laboratories world-wide. The reported data were evaluated with respect to their relative bias against the reference value and with respect to their reported overall uncertainty. The major sources of bias leading to overestimated values are ineffective purification procedures, high background values and a lack of statistical control over background values. The major sources of bias leading to an underestimation are overestimated recovery factors in part due to failure to correct for stable Sr in the sample and possibly failure to correct for quenching in liquid scintillation counting. Preliminary results for a small randomly selected group of laboratories are presented.

  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

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)