Ultra-trace analysis of (36)Cl by accelerator mass spectrometry: an interlaboratory study

Autor(en)

Silke Merchel, W. Bremser, Vasily Alfimov, Maurice Arnold, Georges Aumaitre, Lucilla Benedetti, Didier L. Bourles, Marc William Caffee, L. Keith Fifield, Robert C. Finkel, Stewart P. H. T. Freeman, Martin Martschini, Yuki Matsushi, Dylan H. Rood, Kimikazu Sasa, Peter Steier, Tsutomu Takahashi, Michiko Tamari, Stephen G. Tims, Yuki Tosaki, Klaus M. Wilcken, S. Xu

Abstrakt

A first international (36)Cl interlaboratory comparison has been initiated. Evaluation of the final results of the eight participating accelerator mass spectrometry (AMS) laboratories on three synthetic AgCl samples with (36)Cl/Cl ratios at the 10(-11), 10(-12), and 10(-13) level shows no difference in the sense of simple statistical significance. However, more detailed statistical analyses demonstrate certain interlaboratory bias and underestimation of uncertainties by some laboratories. Following subsequent remeasurement and reanalysis of the data from some AMS facilities, the round-robin data indicate that (36)Cl/Cl data from two individual AMS laboratories can differ by up to 17%. Thus, the demand for further work on harmonising the (36)Cl-system on a worldwide scale and enlarging the improvement of measurements is obvious.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

CEREGE - Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement, Bundesanstalt für Materialforschung und -prüfung (BAM), Eidgenössische Technische Hochschule Zürich, Purdue University, Australian National University, Lawrence Livermore National Laboratory, University of Glasgow, University of Tsukuba

Journal

Analytical and Bioanalytical Chemistry

Band

400

Seiten

3125-3132

Anzahl der Seiten

8

ISSN

1618-2642

DOI

https://doi.org/10.1007/s00216-011-4979-2

Publikationsdatum

2011

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/ultratrace-analysis-of-36cl-by-accelerator-mass-spectrometry-an-interlaboratory-study(9fe61d9c-7c29-458e-9648-209f952def77).html