作者
Stephan König, Ambre Luguet, Jean-Pierre Lorand, Frank Wombacher, Moritz Lissner
发表日期
2012/6/1
期刊
Geochimica et Cosmochimica Acta
卷号
86
页码范围
354-366
出版商
Pergamon
简介
Selenium and tellurium, like the highly siderophile elements, may constitute key tracers for planetary processes such as formation of the Earth’s core and the Late Veneer composition, provided that their geochemical behavior and abundances in the primitive upper mantle (PUM) are well constrained. Within this scope, we have developed a high precision analytical method for the simultaneous determination of selenium and tellurium concentrations from a single sample aliquot and for various rock matrices, including ultra-depleted peridotites. The technique employs isotope dilution, thiol cotton fiber (TCF) separation and hydride generation ICP-MS. A selection of international mafic and ultramafic rock reference materials BIR-1, BE-N, TDB-1, UB-N, FON B 93 and BHVO-2 with a range of 30–350ppb Se and 0.7–12ppb Te show external reproducibilities that generally range from 3% to 8% for Se and 0.4% to 11% for …
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S König, A Luguet, JP Lorand, F Wombacher… - Geochimica et Cosmochimica Acta, 2012