Abstracts
Abstracts are available for download
Process tracing in ecology & plant science
Chairs: Christiane Werner (University of Freiburg) and Marco Lehmann (WSL)
A. Kahmen – University of Basel – keynote speaker |
Using carbon and oxygen isotopes of herbarium specimen to infer long-term physiological responses of plants to global environmental change |
L. Wingate – INRAE – invited speaker |
Is a ‘black box’ approach sufficient to predict the exchange of CO18O and COS between soils and the atmosphere or do we need to dig deeper? |
C.A. Stricker – US Geological Survey (online) |
Fat and fit: diet estimation, macronutrient assimilation, and nutritional implications for an iconic Arctic predator |
M. Julien – GFZ Potsdam |
Re-evaluation of the 13C isotope fractionation associated with fatty acids biosynthesis by position-specific isotope analysis |
L. E. Daber – University of Freiburg |
Position-specific isotope labelling gives new insights into chiral monoterpene synthesis |
D. B. Nelson – University of Basel |
Historic European monthly precipitation isotope time series reconstructions using machine learning |
T. Röckmann – Utrecht University |
Exploring the potential of Δ17O in CO2 for determining mesophyll conductance |
P1 | C. Buchen-Tschiskale – Thünen Institute |
Using N2O isotopocule analysis and 15N tracing approach to gain insights into N2O source processes in hydroponic tomato cultivation | |
P2 | R. Well – Thünen Institute |
Combining 15N tracing and 15N site preference of N2O to distinguish production by nitrification and fungal denitrification | |
P3 | F. Tamburini – ETH Zürich |
Oxygen isotopes in phosphate: defining potentials and limitations for environmental studies | |
P4 | R. A. Werner – ETH Zürich |
Intramolecular 13C patterns of plant glucose convey environmental and metabolic information | |
P5 | F. Damak – Tokyo Institute of Technology |
Insights into nitrous oxide reduction by soybean inoculated with Bradyrhizobium from concentration and isotopocule analyses in a field | |
P6 | S. N. Ladd – University of Freiburg |
Leaf-level metabolic changes in daytime respiration and isoprenoid synthesis during drought determined by position-specific 13C-pyruvate labeling | |
P7 | C. Werner – University of Freiburg |
Whole ecosystem 13CO2 and 2H2O Pulse-Labelling to investigate carbon allocation, CO2 and VOC emissions and the role of deep water reserves during drought | |
P8 | J. Baan – University of Basel |
Comparing hydrogen isotope compositions of different lipid compounds across species to address possible origin of variation |
Food authenticity, forensic & biomedical applications
Chairs: Michèle Lees (Eurofins) and Illa Tea (University of Nantes)
S. Kelly – IAEA – keynote speaker |
Improving accessibility to food authentication, using stable isotope analysis, in developing countries: The activities of the joint FAO/IAEA Centre’s food safety and control laboratory |
M. Straub – University Hospital of Lausanne – invited speaker |
Distinct nitrogen isotopic compositions of healthy and cancerous tissue in mice brain and head & neck micro-biopsies |
M. Perini – Centro di Trasferimento Tecnologico |
Stable isotope ratio analysis to assess pharmaceuticals, cosmetics and dietary supplements authenticity |
H. Meijer – University of Groningen |
First Use of Triply Labelled Water analysis for energy expenditure measurements in mice |
P9 | C. Citérin – Nantes Université |
Isotopic signature of 13C and 15N natural abundance in breast cancer patients | |
P10 | M. Couton – Nantes Université |
15N-position-specific isotope analysis by isotope ratio mass spectrometry (PSIA-IRMS) | |
P11 | M. Perini – Centro di Transferimento Technologico |
Isotope ratio mass spectrometry to detect differences in four compartments of Simmental cows fed on C3 and C4 diets | |
P11/2 | P. Paneth – Lodz University of Technology |
The first oxygen stable isotopes assessment in ‘in vivo’ cancer tissues – a pilot study. |
Computation of isotope effects & enzyme mechanisms
Chairs: Agnieszka Dybala-Defratyka (Lodz University of Technology)
K. Świderek – Universitat Jaume I – keynote speaker |
Towards a new protocol for computer assisted biocatalysts design |
P. Paneth – Lodz University of Technology – invited speaker |
My 50 years with isotope effects |
V. Moliner – Universitat Jaume I |
Towards the design of an improved Retro-Aldolase based on QM/MM studies of the reaction catalyzed by different protein scaffolds |
I. H. Williams – University of Bath |
Computational simulation of kinetic isotope effects for enzymatic N-glycoside hydrolysis |
P12 | L. Chai – TU Munich |
Metabolic mechanism of sulfonamide cleavage: a combined computational and experimental study on sulfamethoxazole | |
P13 | A. Dybala-Defratyka – Lodz University of Technology |
Isotope effects on vaporization of organic compounds from aqueous solution – insight from experiment and computations | |
P14 | L. Pennacchio – University of Copenhagen |
First principles model of isotopic fractionation in formaldehyde photolysis: Wavelength and pressure dependence |
Advances in analytical instrumentation and methods
Chairs: Matthias Gehre (UFZ) and Béla Tuzson (Empa)
A. Gilbert – Tokyo Institute of Technology – keynote speaker |
Isotopologues of organic molecules: method developments and applications |
C. Neubauer – University of Colorado – invited speaker |
Discovering isotopic fingerprints anew on bioanalytical mass spectrometers |
C. Rennick – National Physical Laboratory (online) |
Calibration of Boreas: a new laser-based instrument for in-situ automated measurement of δ13C and δ2H in methane |
T. Csernica – California Institute of Technology |
High-Dimensional Isotomics: Observation and Interpretation of Over 100 Isotopic Constraints on Methionine |
R. G. H. Marks – University of Essen |
How to Couple LC-IRMS with HRMS – A Proof-of-Concept Study |
S. Renou – University of Nantes |
Towards unbiased 13C isotopic composition in PSIA |
B. Tuzson – Empa |
Mid-infrared laser spectroscopy coupled to continuous sublimation extraction. A novel method for high-precision greenhouse gas measurements in ice cores |
P15 | F. Antritter – TU Munich | |
Reducing the unwanted: selectivity of various solid phase extraction sorbents in relation to dissolved organic matter | ||
P16 | A. Canavan – TU Munich | |
Position-specific isotope analysis using 13C-labels on sulfamethoxazole | ||
P17 | A. Tafa – TU Munich | |
Suitability of passive sampling for compound-specific isotope analysis of micropollutants in aquatic environments | ||
P18 | R. Bakkour – TU Munich | |
Universal vs. selective sorbents for targeted isotope analysis of aquatic contaminants | ||
P19 | C. Wabnitz – TU Munich | |
Coupling a quartz crystal microbalance with liquid chromatography for online NOM monitoring | ||
P20 | S. Leitner – Institute of Soil Research | |
A UAV-based sampling system to analyze greenhouse gases and volatile organic carbons encompassing compound specific stable isotope analysis | ||
P21 | E. P. Mueller– California Institute of Technology | |
High-precision ESI-Orbitrap MS measurements of hydrogen isotope compositions from organic molecules | ||
P22 | A. Hilkert – Institute of Soil Research | |
Comprehensive isotope ratio MS with electrospray-Orbitrap | ||
P23 | M. Öztopark – Royal Netherlands Institute for Sea Research | |
Investigating the intramolecular isotopic structure of isoprenoids via ultra high resolution APCI - Orbitrap mass spectrometry | ||
P24 | G. S. Remaud – Nantes University | |
Exploring the potential of 17O NMR for intramolecular 17O isotope profile: application to vanillin origin discrimination | ||
P25 | S. Renou – Nantes University | |
How to determine the intramolecular 13C composition on low amount of glucose using irm 13C-NMR | ||
P26 | R. P. J. Moonen – Utrecht University | |
First results of CO2 and H2O Isotope-Flux Measurements a semi-arid area with large scale irrigation | ||
P27 | G. A. Adnew – Utrecht University | |
Temperature dependence of isotopic fractionation in the CO2-O2 isotope exchange reaction | ||
P28 | E. Safi – National Physical Laboratory | |
Fractionation effects during methane separation from ambient air for high-precision optical analysis of δ13C and δ2H | ||
P29 | A. Th. Aerts-Bijma – University of Gröningen | |
Where do IRMS’s go wrong? δ18O SLAP determined at -56.3‰ | ||
P30 | K. Huang – Empa | |
A novel automated technique for simultaneous online analysis of 15N in ammonium, nitrite, and nitrate | ||
P31 | K. Zeyer – Empa | |
Real-time analysis of δ13C- and δD-CH4 in ambient air with a QCL based absorption spectrometer: Method development | ||
P32 | M. Lehmann – WSL | |
The hydrogen isotopic composition of plant carbohydrates – Advancement in methods and interpretation | ||
P33 | S. Hugger – University of Basel | |
Method optimization for plant sugar purification and compound-specific hydrogen isotope analysis | ||
P33/2 | S. G. Pati – University of Basel | P58 |
δ-scale calibration for stable isotope analysis of O2 by continuous flow IRMS from -10 to +95 ‰ with in-vitro photosynthesis experiments |
Clumped isotopes
Chairs: Stefano Bernasconi (ETH Zürich) and Ivan Prokhorov (Empa)
J. Fiebig – Goethe University of Frankfurt – keynote speaker |
Benefits and perspectives of carbonate dual clumped isotope thermometry |
M. Clog – University of Glasgow – invited speaker |
Robustness of clumped carbonate thermometry in carbonates from the Tara Deep, a large Irish orebody |
M. Sivan – Utrecht University |
Characterization of microbial methane using clumped isotope measurements |
J. Quade – University of Arizona |
Carbonate clumped isotope calibration from 6 to 1100°C using an isotope ratio laser spectrometer based on tunable infrared laser spectroscopy |
P34 | A. Nataraj – Empa |
Quantum cascade laser absorption spectrometer with a low temperature multipass cell for precision clumped 12C18O2 and position specific isotope analysis | |
P35 | I. Prokhorov – Empa |
Concordant optical clumped isotope thermometry of methane | |
P36 | H. Eckhardt – University of Heidelberg |
Atmospheric CO2 sources with specific Δ47 signals under mixing conditions | |
P37 | N. Looser – ETH Zürich |
Clumped isotope reordering in belemnite and optical calcites: Towards material-specific reordering kinetics | |
P38 | N. Zhang – Tokyo Institute of Technology |
Abiotic methane formation in nature: information from clumped isotope analysis of laboratory synthesized methane |
Origin and evolution of the Earth (planets) & life
Chairs: Huiming Bao (Nanjing University)
Y. Ueno – Tokyo Institute of Technology – keynote speaker |
Tracing oxygen in sulfate using 34S-18O-clumping |
J. Hemingway – ETH Zürich – invited speaker |
Interpreting triple-oxygen isotope compositions in the geologic sulfur cycle |
I. Bobrovskiy – GFZ Potsdam |
Compound-specific isotope analysis on phylogenetically specific molecular fossils as a tool to deconvolve the stable carbon isotope record of the deep time |
M. H. Thiemens – University of California San Diego |
Solar controls of radioactive sulfur isotopes |
P39 | L. Liu – Australian National University |
SHRIMP-SI quadruple sulfur isotopic compositions of two generations of pyrite in the 3.49 Ga dresser formation |
Global change, greenhouse gases & aerosols
Chairs: Thomas Röckmann (Utrecht University) and Sakae Toyoda (Tokyo Institute of Technology)
S. Ono – MIT – keynote speaker |
A model for isotopologue signatures of microbial methane to improve source attributions |
L. Yu – Tsingua University / Empa – invited speaker (online) |
Constraining global N2O budgets with decadal trends of multiple isotope signatures |
A. Matson – Thünen Institute (announcement) |
Research Gate Discussion Group: Isotopic tools to study N2O in soil and aquatic systems |
R. Hill-Pearce – National Physical Laboratory (online) |
Stable isotope reference materials for climate change monitoring |
P. M. Homyak – University of California Riverside |
Using isotopes to understand N-limitation in dry lands: Unexpected N loss pathways in systems with too little N |
A. Hoheisel – University of Heidelberg |
Evaluation of six years of continuous δ13CH4 measurements in Heidelberg, Germany |
R. W. van Zwieten – Picarro, Inc. (sponsored) |
Committed to Science - Stable isotope analysis with CRDS – practical considerations and use cases |
J. Kaiser – University of East Anglia |
Polyisotopic carbon dioxide ratios at the coastal Weybourne Atmospheric Observatory (Norfolk, UK) |
S. L. Baartman – Utrecht University |
Isotopic measurements of carbonyl sulfide (COS): from biosphere to stratosphere |
H. Bao – Nanjing University |
Atmospheric sulfate of prehuman time in inland northern China |
P40 | H. A. Scheeren – University of Gröningen |
Measuring the stable isotopic composition of pure CO2 samples on a dual-laser absorption spectrometer using a back-dilution method to obtain dry ambient conditions | |
P41 | P. M. Steur – University of Gröningen |
A four-year record (2017-2021) of ∆17O in atmospheric CO2 from Lutjewad station (NL) | |
P42 | M. Fatima – VTT |
Comparison of laser sources and driver electronics for optical isotope ratio spectroscopy | |
P43 | S. Toyoda – Tokyo Institute of Technology |
Spacio-temporal distributions of atmospheric nitrous oxide and its isotopocules | |
P44 | A. Matson – Thünen Institute |
Research Gate Discussion Group: Isotopic tools to study N2O in soil and aquatic systems |
Biogeochemistry, elemental cycles and fate of contaminants
Chairs: Anat Bernstein (Ben-Gurion University of the Negev) and Moritz Lehmann (University of Basel)
K. L. Casciotti – Stanford University – keynote speaker |
Tracing nitrous oxide biogeochemistry in marine oxygen deficient zones using isotopes and isotopomers |
C. L. Kelly – Stanford University |
Identifying a potentially variable site preference for hybrid nitrous oxide production via isotopomer labeling experiments |
E. Harris – ETH Zürich |
Denitrifying pathways dominate nitrous oxide emissions from managed grassland during drought and rewetting |
B. Mayer – University of Calgary |
Isotopic tracing of sources and fate of nitrate, sulfate and methane in groundwater in Alberta (Canada) |
B. Wolf – Karlsruhe Institute of Technology |
Intramolecular N2O isotopic composition from grassland without preconcentration: interferences correction, nitrification inhibitors, freeze-thaw events and source process identification |
A. Danner & G. Rahe – Envicontrol (sponsored) |
Analysis of soil respiration with OA-ICOS technology |
D. Hunkeler – University of Neuchatel – keynote speaker |
Does compound-specific isotope analysis contribute to a new conceptual understanding of the fate of contaminants in the environment? |
M. Wiggenhauser – ETH Zürich |
Fractionation of stable isotopes of metals and metalloids in plants - copper and cadmium as examples |
S.-L. Badea – ICSI |
Dehalogenation of α-hexachlorocyclohexane by iron sulfide nanoparticles: Study of reaction mechanism with stable carbon isotopes and pH variations |
P. R. Martin – University of Tübingen |
Manganese–driven oxidation of aminotris (methylene) phosphonate (ATMP) studied by carbon CSIA |
S. G. Pati – University of Basel |
Oxygen kinetic isotope effects associated with reactions of singlet oxygen in aqueous solutions |
C. E. Bopp – EAWAG |
Tracing mechanistic adaptations of enzymatic oxygenations of aromatic contaminants using 13C and 18O kinetic isotope effects |
J. Hayles – NASA (online) |
Constraints on triple oxygen isotope kinetics |
M. Elsner – Technical University of Munich |
Isotope fractionation reveals limitations and microbial regulation of pollutant biodegradation at low concentrations |
P45 | K. Müller – TU Munich | |
Applicability of a reverse stable isotope labeling approach to show biodegradation of microplastics on a single-cell level | ||
P46 | A. Matson – Thünen Institute | |
Using depth profiles and natural abundance stable isotopes to determine N2O processes in agricultural soils | ||
P47 | K. Kourtaki – University of Tübingen | |
Application of compound-specific carbon isotope analysis on aerobic biotransformation of glyphosate | ||
P48 | A. Röhnelt – University of Tübingen | |
Heterogenous oxidation of aminopolyphosphonates and AMPA at manganese oxide surfaces studied by carbon LC-IRMS | ||
P49 | O. Boukaroum – Aix-Marseille University | |
Significant 2H and 13C isotope fractionation during volatilisation and diffusion of hydrocarbons in soil | ||
P50 | P. Höhener – Aix-Marseille University | |
DECiSIvE - Tracking degradation of soil pollutants with multi-elemental compound-specific isotope analysis | ||
P51 | M. Alvarez-Salas – ETH Zürich | |
Stable isotopes of oxygen: the key to understand the soil fate of fertilizer-derived phosphorus? | ||
P52 | E. Stoll – University of Innsbruck | |
New insights into climate change-driven soil N2O production and emissions in managed montane grassland | ||
P53 | M. Vinyes-Nadal – University of Barcelona | |
Assessing methoxychlor contamination and natural attenuation in a polluted aquifer using carbon compound specific isotope analyses | ||
P54 | D. Lewicka-Szczebak – University of Wrocław | |
Combining isotope mixing and fractionation with a new modelling tool applying the Monte Carlo approach | ||
P55 | M. Bucha – University of Wrocław | |
Tracing anaerobic decomposition of lactate, butyrate, propionate, and acetate by means of carbon isotopic analyses of products CH4, CO2, and DIC in the continuous-flow open systems | ||
P56 | P. M. Magyar – University of Basel | |
Constraining interplay between kinetic and equilibrium isotope effects during anammox in a wastewater treatment system | ||
P57 | T. Einzmann – University of Basel | |
Understanding biogeochemical controls on nitrous oxide production and consumption in Lake Lugano, Switzerland | ||
P58 | S. G. Pati – University of Basel | P33/2 |
δ-scale calibration for stable isotope analysis of O2 by continuous flow IRMS from -10 to +95 ‰ with in-vitro photosynthesis experiments | ||
P59 | C. F. M. de Carvalho – University of Basel | |
Oxygen isotope fractionation during enzymatic O2 consumption reactions | ||
P60 | T. Kuder – University of Oklahoma | |
Hydrogen isotope exchange between trichloroethene and water under mild environmental conditions – implications for the use of hydrogen CSIA in contaminated site assessment | ||
P61 | N. Gluschankoff – Stanford University | |
Isotopic analysis of nitrous oxide during El Niño and La Niña in the Eastern tropical South Pacific | ||
P62 | J. Mohn – Empa | |
Tracing N2O formation in full-scale wastewater treatment with natural abundance isotopes |