How well do non-traditional stable isotope results compare between different laboratories: Results from the interlaboratory comparison of boron isotope measurements

Jugdeep Aggarwal, Florian Böhm, Gavin Foster, Stanislaw Halas, Bärbel Hönisch, Shao Yong Jiang, Jan Kosler, Amir Liba, Illia Rodushkin, Ted Sheehan, Jason Jiun-San Shen, Sonia Tonarini, Qianli Xie, Chen Feng You, Zhi Qi Zhao, Evelyn Zuleger

研究成果: Article同行評審

38 引文 斯高帕斯(Scopus)

摘要

In order to address the correct reporting and therefore comparison of isotopic measurements across different instrument types and instrumental techniques a prepared set of synthetic standards was sent to 28 laboratories for boron (B) isotopic analyses. Standards were prepared from enriched and purified isotopic salts to avoid any sample preparation fractionation. The range in uncertainties of the analyses between different instrumental analytical techniques is as large as the differences within an instrumental analytical technique obscuring any systematic offset. We conclude that uncertainties in the measurement of δ11B values were often underestimated and a procedure is suggested to allow a better comparison of the different techniques. Two new standards (JABA and JABB) have been quantified and these are available to all laboratories for testing their analyses. The δ11B values of these new standards are 10.0‰ and -23.7‰. The results from this exercise impact on the way all isotope measurements are performed and reported. Guidelines are defined to aid the comparison of measurements between different laboratories.

原文English
頁(從 - 到)825-831
頁數7
期刊Journal of Analytical Atomic Spectrometry
24
發行號6
DOIs
出版狀態Published - 2009

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Spectroscopy

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