Determination of the rare earth elements of rock samples by ICP-MS using different sample decomposition methods

Bartha A. and Bertalan É.: Determination of the rare earth elements of rock samples by ICP-MS using different sample decomposition methods. In: Acta mineralogica-petrographica, (38). pp. 131-149. (1997)

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Rare earth elements were determined in 12 international standard reference rock samples using inductively coupled plasma mass spectrometry technique. Aim of this work was to find a relatively simple but reliable decomposition method for the purposes of REE determination. Sample solutions were produced by different sample decomposition methods: 1. closed vessel decomposition in a microwave digestion oven by different acid mixtures; 2. decomposition by LiBOj fusion in platinum crucibles. Effect of dilution was investigated. Final sample concentration of 0.2 gL' ' was found to be optimal. Indium was used as internal standard. HCI-HNO3-H2F2 digestion followed by an evaporation step was not efficient enough to obtain a total recovery. In the case of digestion with acid mixtures there could occur some recovery problems for the heavy REEs, mainly with the mixture of HCI-HN03-H2F2 which is less aggressive than the H1PO4-HNO3-H2F2 mixture, used alternatively. Fusion with UBO2 is a very simple process used extensively in our laboratory and gave good recovery data.

Item Type: Article
Journal or Publication Title: Acta mineralogica-petrographica
Date: 1997
Volume: 38
ISSN: 0365-8066
Page Range: pp. 131-149
Language: English
Publisher: University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Place of Publication: Szeged
Related URLs:
Uncontrolled Keywords: Kőzettan, Ásványtan, Földtan
Additional Information: Bibliogr.: 138. p. ; összefoglalás angol nyelven
Subjects: 01. Natural sciences
01. Natural sciences > 01.05. Earth and related environmental sciences
Date Deposited: 2016. Oct. 17. 09:25
Last Modified: 2022. Jul. 27. 12:31

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