Vienna Isotope Research and Survey
Abstract
Aim of this project is the implementation and development of a new and challenging field of research in the Austrian research area: the high precision measurement of isotope ratios by using multi collector ICP-MS (MC-ICP-MS). The increasing numbers of thriving applications open up new doors to natural and applied science which were not accessible before. The advantage of the system is, that a large variety of isotopic ratios can be measured with highest instrumental precision (down to 0.001 % RSD). Modern instruments allow moreover high mass resolution in order to investigate also isotopic systems, which are suffering from isobaric spectral overlaps in common ICP-MS systems (e.g. S, Ca, Fe, Cu or Zn isotope ratios, only to state a few). In combination with direct solid sampling (laser ablation), the capability of a quasi-destruction free method with high spatial resolution enhances the performance of MC-ICP-MS enormously. A diligent assessment of the measurement protocol is a prerequisite to avoid that scientific conclusions are drawn from analytical artifacts. Therefore, an important fundamental goal of the project is the understanding of ionic processes and isotopic effects. The technological development will also include the development of an on-line matrix separation (including Laser ablation) or the use of a reaction/collision cell in order to study the direct suppression of spectral interferences The methodological development will be directly transferred to three main pillars of applied research, which are planned within this research project. This multidisciplinary project is conducted at the University of Natural Resources and Applied Life Sciences in collaboration with the University of Vienna and the Museum of Natural History, Vienna. This structure of the project enables a direct combination of theoretical and fundamental research with applications of high public importance. the development of multi-isotopic patterns for food authentication, An EU legislation (‘Traceability’ process along the production chain) will be implemented in 2005, which aims at process control and proof of authenticity of food, feed and food producing animals in order to preserve public health and consumer protection. One promising approach is the establishment of multi-isotopic pattern. In-situ LA-MC-ICPMS U-Th-Pb geochronology and in-situ LA-MC-ICPMS REE geochemistry and geo-thermo barometry of phosphates in metamorphic and sedimentary rocks The overall goal of the research project is to establish xenotime thermo chronometry as a geochronological-petrological tool to provide single points in P-T-t space, especially in the high temperature parts of pro- and retrograde metamorphism. Only in-situ LA-MC-ICP-MS dating provides the necessary textural control and analytical sensitivity for successful dating. the study of human Neolithic migration into Europe and characterization of prehistoric skeletal remains using Sr isotope ratios The studies in this field have gained a main public interest and current investigations are rare since the adequate tools are still missing and serious interpretation of data is still lacking. Moreover, only selected institutions have access to the highly valuable material. The skeletal remains, which can be assessed in this study, are unique Neolithic remains as well as Neanderthal teeth, which could not be analyzed ever before. These valuable tools can be analyzed in combination with Laser Ablation. The results will shed light behind a so far unknown chapter of human history. The long term sustainability of the project is underlined by a variety of international contacts and possible follow-up projects, which are partially already being prepared in order to be submitted on time after the start of the research.
food authentication migration isotope analysis
Publikationen
Chemical imaging of isotopic spikes in hard tissues using LA-ICPMS
Autoren: Prohaska, T., Horsky, M., Irrgeher, J., Zitek, A., Teschler-Nicola, M., Schulze-Koenig, T., Walcyk, T. Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Sr isotopic investigations of calcium-rich matrices by LA-MC-ICPMS
Autoren: Irrgeher, J., Galler, P., Zitek, A., Teschler-Nicola, M., Prohaska, T. Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Anwendungsmöglichkeiten einer 87Sr/86Sr Isoscape auf fischökologische Fragestellungen im Donaueinzugsgebiet
Autoren: Zitek, A., Irrgeher, J., Sailer, K., Trautwein, C., Waidbacher, H., Prohaska, T. Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Sr-Isotopenverhältnis-Messungen in calciumreichen Probenmatrizes mittels LA-MC-ICPMS
Autoren: Irrgeher, J., Zitek, A., Teschler-Nicola, M., Prohaska, T. Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Transgenerationales Markieren von Karpfen (Cyprinus carpio) mittels eines Strontium-Isotopen -Doppelspikes
Autoren: Cervicek, M., Zitek, A., Irrgeher, J., Prohaska, T. Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Herkunftsbestimmung von Fischen aus Flusssystemen mit Hilfe von Element- und Isotopenbestimmung Gehörsteinen (Otolithen)
Autoren: Kendlbacher, F., Zitek, A., Waidbacher, H., Prohaska, T. Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Wo, woher oder wohin? Einsatz der modernen Isotopenanalytik zur Herkunftsbestimmung von Lebensmitteln
Autoren: Irrgeher, J. Zitek, A., Prohaska, T. Jahr: 2012
Conference & Workshop proceedings, paper, abstract
Project staff
Thomas Prohaska
Ao.Univ.Prof. Dipl.-Ing. Dr.techn. Thomas Prohaska
thomas.prohaska@boku.ac.at
Project Leader
01.03.2005 - 28.02.2012
BOKU partners
External partners
Natural History Museum Vienna
Prof. Maria Teschler
partner
ARC Seibersdorf research BmbH, Biogenetics - Natural Resources, Dep. Environmental Research_x000D_ _x000D_
Dr. Micha Horacek
partner
University of Wienna, Institute of Geology
Prof. Urs Klötzli
partner