Rapid screening of boron isotope ratios in nuclear shielding materials by LA-ICPMS -- a comparison of two different instrumental setups.

Autor: Kurta, Christoph, Dorta, Ladina, Mittermayr, Florian, Prattes, Karl, Hattendorf, Bodo, Günther, Detlef, Goessler, Walter
Předmět:
Zdroj: JAAS (Journal of Analytical Atomic Spectrometry); Vol. 29 Issue 1, p185-192, 8p
Abstrakt: 10B enriched resources are widely used in shielding materials such as boron-alloyed steels in nuclear reactors and storage containers. During production, quality control is an indispensable part of the process. In this study two methods for the rapid screening of B enriched special steel samples with a 10B isotopic fraction from 90 to 97% -- taken from the production process -- were developed and compared. We used both ns-LA-ICPMS and fs-LA-MC-ICPMS and evaluated the different instrumental setups for this application. Even though the micro-inhomogeneous boron distribution in the steel samples was determined by LA-ICPMS and EPMA no e ect on the isotope ratios could be observed. Besides matrix- and isotope-ratio-matched standardization with in-house reference materials, a non-matrix- and non-isotope-ratio-matched calibration using NIST 610 glass SRM was applied successfully. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index