An efficient combined procedure for the extreme trace analysis of gold, platinum, palladium and rhodium with the aid of graphite furnace atomic absorption spectrometry and total-reflection X-ray fluorescence analysis |
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| Authors: | R. Eller, F. Alt, G. Tö lg H. J. Tobschall |
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| Affiliation: | (1) Institut für Spektrochemie und angewandte Spektroskopie (ISAS), Bunsen-Kirchhoff-Strasse 11, D-4600 Dortmund 1, Germany;(2) Laboratorium für Reinststoffanalytik (LRA), Max-Planck-Institut für Metallforschung, Stuttgart, Bunsen-Kirchhoff-Strasse 13, D-4600 Dortmund 1, Germany;(3) Institut für Kristallographie und Petrographie, Welfengarten 1, D-3000 Hannover, Germany;(4) Present address: Philips Export B.V., Lelyweg 1, NL-7602 EA Almelo, The Netherlands |
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| Abstract: | Summary The determination of Au, Pt, Pd and Rh at ng- and pg-levels in manganese crust, natural water and geological and biological standards is based upon extraction of these elements with Se via a coprecipitation technique, elaborated as a micro-technique. All steps of the combined procedure are controlled by radiotracer (195Au) and yields vary between 90 and 100%. Zeeman graphite furnace atomic absorption spectrometry and total reflection X-ray spectrometry are employed as determination steps. Sources of systematic errors are discussed.
Leistungsfähiges Kombinationsverfahren zur Ultraspurenanalyse von Au, Pt, Pd und Rh mit Hilfe der GF-AAS und der Totalreflexions-Röntgenfluorescenzanalyse
Dedicated to Prof. Dr. F. Huber on the occasion of his 60th birthday |
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