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Radiochimica Acta

International Journal for chemical aspects of nuclear science and technology

Editor-in-Chief: Qaim, Syed M.


IMPACT FACTOR 2018: 1.339

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.333
Source Normalized Impact per Paper (SNIP) 2018: 0.720

Online
ISSN
2193-3405
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Volume 102, Issue 9

Issues

Analysis of barium borosilicate glass matrix for uranium determination by using ns-IR-LIBS in air and Ar atmosphere

Arnab Sarkar / Raman Kumar Mishra / Chetan Parkash Kaushik / Piaray Kishen Wattal / Devanathan Alamelu / Suresh Kumar Aggarwal
Published Online: 2014-04-24 | DOI: https://doi.org/10.1515/ract-2014-2243

Abstract

In this paper, an attempt to explore the use of laser induced breakdown spectroscopy (LIBS) technique for determination of uranium in the vitrified simulated high level barium borosilicate waste glass matrix was made with a commercial portable LIBS system. The emission spectrum of the waste glass being very complex, detailed study was done for proper choice of the emission lines. Investigations were carried out to optimize the experimental parameters like laser energy and acquisition delay time for the analysis. Calibration curves were obtained for two emission lines of U in these glasses. Effect of Ar atmosphere was also studied and the signal intensity was found to be ∼5 times higher than in air atmosphere The emission lines used for normalization with vast difference in the upper energy level compared to the line of interest were found to give poor precision in air. In the Ar atmosphere, this effect was found to be much less significant and such emission lines can be used as an internal standard to achieve precise calibration curves. LIBS approach will be useful for real time determination of U in such samples, eliminating quantitative dissolution step required in many other analytical techniques like solution based ICP-MS/OES.

Keywords: Uranium; Barium borosilicate glass; Nuclear waste; Ar; LIBS

About the article

Accepted: 2014-03-19

Received: 2013-12-16

Published Online: 2014-04-24

Published in Print: 2014-09-28


Citation Information: Radiochimica Acta, Volume 102, Issue 9, Pages 805–812, ISSN (Online) 2193-3405, ISSN (Print) 0033-8230, DOI: https://doi.org/10.1515/ract-2014-2243.

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