A5082250660- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- Analytical chemistry methods development
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Radioactive element chemistry and processing
- Isotope Analysis in Ecology
- Geochemistry and Elemental Analysis
- Heavy metals in environment
- Mineralogy and Gemology Studies
- Recycling and Waste Management Techniques
- Nuclear Physics and Applications
- Paleontology and Stratigraphy of Fossils
- Extraction and Separation Processes
- Geology and Paleoclimatology Research
- Identification and Quantification in Food
- Advances in Cucurbitaceae Research
- GABA and Rice Research
- Crystal Structures and Properties
- Radioactive contamination and transfer
- Recycling and utilization of industrial and municipal waste in materials production
- Geological Formations and Processes Exploration
- Metal Extraction and Bioleaching
- Geological Studies and Exploration
- Pacific and Southeast Asian Studies
Montanuniversität Leoben
2015-2025
Geost (United States)
2012
International Psychoanalytical Association
2011
Carl von Ossietzky Universität Oldenburg
2010
Heidelberg University
2004
Heidelberg University
2004
University of Bern
1992-2001
University of Bristol
2001
The University of Queensland
2001
University of Maryland, College Park
1996-1997
The accurate determination of platinum‐group elements (PGE), rhenium and gold is important in both fundamental research ore deposit studies. Questions have been raised by some authors as to whether the nickel‐sulfur fire assay technique (NiS‐FA) efficiently collects all PGE. On other hand, most isotope dilution (ID) techniques can only treat small test portion masses (2 g was used for high‐pressure asher digestion; HPA) this makes them more vulnerable nugget effects. We determined PGE...
An attractive approach to mitigate hydrogen embrittlement (HE) is use nano-sized particles immobilize hydrogen. However, atomic scale relationship between different particle-matrix characteristics in aluminum alloys and the susceptibility HE unknown. In this study, effects of interactions various interfaces are investigated using a comprehensive multiscale experimental simulation-based that includes observations, simulation advanced mapping techniques. Depending on nature interfaces, e.g.,...
A simple and highly selective analytical procedure is presented here for the concentration determination of Ru, Rh, Pd, Re, Os, Ir Pt via isotope dilution, which suitable investigation geological environmental materials. Sample preparation consists a sample digestion step in high pressure asher (HPA-S) with concentrated HNO3 HCl drying down solution after Os was determined sparging OsO4 into an ICP-MS. After redissolution remaining other PGEs are separated on-line from their matrix...
A method for the determination of low Ru, Pd, Re, Os, Ir and Pt abundances in geological reference materials by isotope dilution inductively coupled plasma mass spectrometry (ICP-MS) after acid digestion a high pressure asher (HPA-S) is presented. The technique similar to that using Carius tubes but easier handle reaches higher temperatures. Osmium can be determined as OsO4 with ICP-MS directly through sparging technique. remaining elements are preconcentrated means anion column...
One or two gram aliquots of twelve reference materials with low platinum‐group element (PGE) abundances (Ir concentrations ranging from 30 to 510 pg g ‐1 ) were analysed by isotope dilution ICP‐MS using an on‐line chromatographic matrix separation after acid digestion in a high pressure asher (HPA‐S) determine the Ru, Pd, Re, Ir and Pt. Osmium determined via ID‐ICP‐MS but as volatile OsO 4 , whereas Rh calculated comparing peak areas that standard solution. Validation method was performed...