NDLI: Determination of technetium-99, thorium-230 and uranium-234 in soils by inductively coupled plasma mass spectrometry using flow injection preconcentration

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Determination of technetium-99, thorium-230 and uranium-234 in soils by inductively coupled plasma mass spectrometry using flow injection preconcentration

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Journal of Analytical Atomic Spectrometry Vol - 9 Issue - 8

Journal of Analytical Atomic Spectrometry Vol - 9 Issue - 7

Journal of Analytical Atomic Spectrometry Vol - 9 Issue - 6

Journal of Analytical Atomic Spectrometry Vol - 9 Issue - 5

Journal of Analytical Atomic Spectrometry Vol - 9 Issue - 4

Journal of Analytical Atomic Spectrometry Vol - 9 Issue - 3

Journal of Analytical Atomic Spectrometry Vol - 9 Issue - 2

Journal of Analytical Atomic Spectrometry Vol -8

Journal of Analytical Atomic Spectrometry Vol -7

Journal of Analytical Atomic Spectrometry Vol -6

Journal of Analytical Atomic Spectrometry Vol -5

Journal of Analytical Atomic Spectrometry Vol -4

Journal of Analytical Atomic Spectrometry Vol -2

Determination of technetium-99, thorium-230 and uranium-234 in soils by inductively coupled plasma mass spectrometry using flow injection preconcentration

Content Provider	Royal Society of Chemistry (RSC)
Author	Hollenbach, Mark Mamich, Stephen Grohs, James Kroft, Marilyn Denoyer, Eric R.
Copyright Year	1994
Abstract	A new method is described for the determination of 99Tc, 230Th, and 234U at ultra-trace levels in soils. The method used flow injection (FI) for on-line preconcentration of 99Tc, 230Th and 234U prior to detection using inductively coupled plasma mass spectrometry (ICP-MS). The FI-ICP-MS method results in greater sensitivity and freedom from interferences compared with direct aspiration into an ICP mass spectrometer. Detection limits are improved by approximately a factor of 10. The FI-ICP-MS method is also faster, less labour intensive and generates less laboratory waste than traditional radiochemical methods. The accuracy of the method was tested for 99Tc by comparison to liquid scintillation counting and for 230Th and 234U by analysis of a US Department of Energy reference soil. Detection limits in the soil for 99Tc, 230Th and 234U were 11 mBq g–1(0.02 ng g–1), 3.7 mBq g–1(0.005 ng g–1) and 0.74 mBq g–1(0.003 ng g–1), respectively. Sample preparation, analysis protocol, and method validation are described.
Starting Page	927
Ending Page	933
Page Count	7
File Format	PDF
ISSN	02679477
Volume Number	9
Issue Number	9
Journal	Journal of Analytical Atomic Spectrometry
DOI	10.1039/JA9940900927
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	US Department of Energy Inductively coupled plasma mass spectrometry Mass spectrometry Liquid scintillation counting Becquerel
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Analytical Chemistry

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Determination of technetium-99, thorium-230 and uranium-234 in soils by inductively coupled plasma mass spectrometry using flow injection preconcentration

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