A5028273504- Isotope Analysis in Ecology
- Radioactive contamination and transfer
- Fish Ecology and Management Studies
- Heavy metals in environment
- Archaeology and ancient environmental studies
- Recycling and Waste Management Techniques
- Forensic Anthropology and Bioarchaeology Studies
- Radioactive element chemistry and processing
- Aquatic Invertebrate Ecology and Behavior
- Nuclear Physics and Applications
- Analytical chemistry methods development
- Groundwater and Isotope Geochemistry
- Geochemistry and Elemental Analysis
- Extraction and Separation Processes
- Geology and Paleoclimatology Research
- Marine and fisheries research
- Mass Spectrometry Techniques and Applications
- Marine and environmental studies
- History and advancements in chemistry
- Electron and X-Ray Spectroscopy Techniques
- Thermography and Photoacoustic Techniques
- Metallurgical Processes and Thermodynamics
- Ancient Egypt and Archaeology
- Paleopathology and ancient diseases
- Astronomical and nuclear sciences
Montanuniversität Leoben
2019-2025
BOKU University
2013-2023
Helmholtz-Zentrum Hereon
2017-2023
University of Calgary
2019-2023
Ludwig-Maximilians-Universität München
2020
Museo de Historia Natural
2020
Institute for Oriental and European Archaeology
2020
Austrian Academy of Sciences
2020
Konrad Lorenz Institute for Evolution and Cognition Research
2020
Natural History Museum Vienna
2020
Abstract The biennial review of atomic-weight determinations and other cognate data has resulted in changes for the standard atomic weights 19 elements. four elements have been revised based on recent isotopic abundances natural terrestrial materials: cadmium to 112.414(4) from 112.411(8), molybdenum 95.95(1) 95.96(2), selenium 78.971(8) 78.96(3), thorium 232.0377(4) 232.038 06(2). Commission Isotopic Abundances Atomic Weights (ciaaw.org) also fifteen 2012 Mass Evaluation: aluminium...
Abstract The Commission on Isotopic Abundances and Atomic Weights (ciaaw.org) of the International Union Pure Applied Chemistry (iupac.org) has revised Table Compositions Elements (TICE). update involved a critical evaluation recent published literature. new TICE 2013 includes evaluated data from “best measurement” isotopic abundances in single sample, along with set representative uncertainties that accommodate known variations normal terrestrial materials.
Abstract Following the reviews of atomic-weight determinations and other cognate data in 2015, 2017, 2019 2021, IUPAC (International Union Pure Applied Chemistry) Commission on Isotopic Abundances Atomic Weights (CIAAW) reports changes standard atomic weights. The symbol A r °(E) was selected for weight an element to distinguish it from E a specific substance P, designated (E, P). CIAAW has changed values weights five elements based recent terrestrial isotopic abundances: Ar (argon): 39.948...
Little is known about woolly mammoth (Mammuthus primigenius) mobility and range. Here we use high temporal resolution sequential analyses of strontium isotope ratios along an entire 1.7-meter-long tusk to reconstruct the movements Arctic that lived 17,100 years ago, during last ice age. We isotope-guided random walk approach compare tusk's oxygen profiles isotopic maps. Our modeling reveals patterns movement across a geographically extensive range animal's ~28-year life span varied with...
The impact of offshore constructions on the marine environment is unknown in many aspects. application Al- and Zn-based galvanic anodes as corrosion protection results continuous emission inorganic matter (e.g. >80 kg Al-anode material per monopile foundation year) into environment. To identify tracers for emissions from wind structures, anode materials (Al-based Zn-based) were characterized their elemental isotopic composition. An acid digestion analysis method Al Zn alloys was adapted...
One widely utilised method to reduce spectral interferences for measurements using inductively coupled plasma mass spectrometry (ICP-MS) is employ the use of a reaction cell gas. Nitrous oxide (N
Perovskite-type oxides have gained significant attention in the scientific community due to their unique properties and potential applications. Their ability exsolve reducible B-site cations (e.g. Co, Ni, Cu) combined with flexibility regarding A-site composition allows for tailoring of novel catalytic materials. This study focuses on doped perovskite-type a general formula Nd0.6Ca0.4Fe1-xCuxO3 Pr0.6Ca0.4Fe1-xCuxO3 (x = 0.0, 0.03, 0.05, 0.10) use as catalyst Methanol Steam Reforming via...
This paper critically reviews the state-of-the-art of isotope amount ratio measurements by solution-based multi-collector inductively coupled plasma mass spectrometry (MC ICP-MS) and presents guidelines for corresponding data reduction strategies uncertainty assessments based on example n((87)Sr)/n((86)Sr) ratios. shows variation attributable to natural radiogenic processes mass-dependent fractionation. The applied calibration can display these differences. In addition, a proper statement...
Seven plant certified reference materials (NIST SRM1515 Apple Leaves, NIST SRM1547 Peach BCR-129 Hay Powder, BCR-670 Aquatic Plant, GBW07603 Bush Twigs and GBW10015 Spinach Leaves NCS ZC73036a Green Tea) were analysed for their mass fractions of 48 elements by inductively coupled plasma tandem-mass spectrometry (ICP-MS/MS): Li, Be, Na, Mg, Al, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Rb, Sr, Y, Nb, Mo, Ag, Cd, Sb, Te, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ta,...
A protocol is described for the accurate and precise determination of Sr isotope amount ratios in TORT-3 candidate lobster hepatopancreas certified reference material (CRM) from National Research Council Canada. Parameters affecting separation Rb based on a double pass dissolved sample matrix through column packed with Eichrom Spec resin were investigated detail. Matrix elements removed concentration was reduced to below 0.002% (expressed as 85Rb/88Sr intensity ratio) purified solutions...
Abstract The Upper Palaeolithic double burial of newborns and the single a ca. 3-month-old infant uncovered at Gravettian site Krems-Wachtberg, Austria, are paramount importance given rarity immature human remains from this time. Genome-wide ancient DNA shows that male infants grave earliest reported case monozygotic twins, while grave´s individual was their 3rd-degree relative. We assessed individuals´ age death by applying histological µCT inspection maxillary second incisors (i2) in...
Concentrations of elements in the aquatic environment are a key parameter for various scientific fields such as biogeochemistry, biology and environmental science. Within this context, community asks new analytical protocols to be able quantify more periodic table. Therefore, requirements aqueous reference materials have increased drastically. Even though wide variety CRMs different water matrices available, certified values many (e.g., rare earth (REE), technology‐critical elements, Ga In,...
Non-metallic inclusions (NMIs) in steel have a detrimental effect on the processing, mechanical properties, and corrosion resistance of finished product. This is particularly evident case macroscopic (>100 µm), which are rarely observed castings produced using state-of-the-art technologies, whereby casting parameters optimized towards cleanliness, post-treatment steps such as vacuum arc remelting (VAR) used, but frequently result rejection affected To improve production processes develop...
The European Green Deal’s ambition for zero pollution requires development of highly sensitive techniques to detect ultra-low amounts pollutants and determine their isotope ratios, where mass spectrometry is a key method. project bridges the traceability gap between activity measurements – particularly estimation bias establishes new tools pollutant tracing. SI-traceable reference materials measurement procedures are being developed that significantly reduce uncertainty detection limits,...
Urban horticulture poses a sustainable form of food production, fosters community engagement and mitigates the impacts climate change on cities. Yet, it can also be tied to health challenges related soil contamination. This work builds previous study conducted eleven urban gardens in city Vienna, Austria. Following findings elevated Pb levels some plant samples within that project, present investigates elemental composition plants from two affected 1 year after compost amendment. Inductively...
The simultaneous retrieval of spatially resolved information on the elemental content and isotope ratios from same sampling spot (<italic>e.g.</italic>in incrementally grown biological material) still represents an analytical challenge.