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Issue 5, 2015
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Femtosecond laser ablation multicollector ICPMS analysis of uranium isotopes in NIST glass

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Abstract

We utilized femtosecond laser ablation together with multi-collector inductively coupled plasma mass spectrometry to measure the uranium isotopic content of NIST 61x (x = 0, 2, 4, 6) glasses. The uranium content of these glasses is a linear two-component mixing between isotopically natural uranium and the isotopically depleted spike used in preparing the glasses. Laser ablation results match extremely well, generally within a few ppm, with solution analysis following sample dissolution and chemical separation. In addition to isotopic data, sample utilization efficiency measurements indicate that over 1% of ablated uranium atoms reach a mass spectrometer detector, making this technique extremely efficient. Laser sampling also allows for spatial analysis and our data indicate that rare uranium concentration inhomogeneities exist in NIST 616 glass.

Graphical abstract: Femtosecond laser ablation multicollector ICPMS analysis of uranium isotopes in NIST glass

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Article information


Submitted
20 Nov 2014
Accepted
19 Jan 2015
First published
06 Feb 2015

J. Anal. At. Spectrom., 2015,30, 1100-1107
Article type
Paper
Author version available

Femtosecond laser ablation multicollector ICPMS analysis of uranium isotopes in NIST glass

A. M. Duffin, K. W. Springer, J. D. Ward, K. D. Jarman, J. W. Robinson, M. C. Endres, G. L. Hart, J. J. Gonzalez, D. Oropeza, R. E. Russo, D. G. Willingham, B. E. Naes, A. J. Fahey and G. C. Eiden, J. Anal. At. Spectrom., 2015, 30, 1100
DOI: 10.1039/C4JA00452C

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