The research group BioGeoOmics integrates state-of-the art instrumental and methodological approaches to study dynamic interactions of molecules in the environment. These molecular interactions include natural processes (e.g. metabolism, organic matter diagenesis) as well as anthropogenic interferences (interaction of biological systems with chemicals).
At the core of the the analytical toolkit of the BioGeoOmics-group, we use ultra-high resolution mass spectrometry (FT-ICR MS) and mass spectrometric imaging (MSI) supported by biogeochemical and chemo-informatics methods. We use these tools to explore chemical and biological transformations of organic molecules, their spatial localization in tissues, and to identify metabolites and unknown chemicals and transformation products in complex mixtures.
The methods and concepts are applied to various research fields:
- Ultracomplex mixtures: Identification of landscape-scale sources and transformation processes of natural organic matter (NOM).
- Identification of transformation products of chemicals and their interactions with natural organic matter (NOM) in engineered and natural systems.
- Non-target FT-ICR MS: Method development and use of stable isotopes in metabolomics and biogeochemistry.
- Imaging mass spectrometry of biological systems: Uptake and distribution of chemicals, primary and secondary metabolites in plants and toxicology model systems.
- Direct analysis of organic material on particles and solids by laser desorption/ionization.
BioGeoOmics at a glance
The team members of the BioGeoOmics working group are attracted by the new ScimaX (from left to right): Rania, Rebecca, Konstantin, Oliver, Michel, Jan, Shuxian, Carsten. Photo: Limei Han
The BioGeoOmics team in December 2021 (from left to right): Silvia, Johann, Limei, Oliver, Martin, Jan, Rebecca, Elaine, Maria.
The BioGeoOmics team in April 2020: Maria, Rebecca, Limei, Elaine, Jan, Arina, Oliver, Martin, Johann. During the Corona pandemic we regularly meet via video chat.
The BioGeoOmics team in October 2018 (from left to right): Jan, Kai, Martin, Maria, Limei, Oliver. Photo: Bettina Seiwert (UFZ)
Scientists:
Dr. Oliver Lechtenfeld
Dr. Carsten Simon
PhD students:
Rania Mobarak
Michel Gad
Shuxian Gao
Konstantin Stumpf
Rebecca Matos
Martin Lohse
Engineer/Technician:
Jan KaeslerRené Köhler
Johann Wurz
Students:
Laura Kahle
Alumni:
Fritz CzaplinskiTheresa Döring
Dr. Elaine Jennings
Dr. Maria da Silva
Dr. Limei Han
Dr. Julia Raeke
Miriam Fuß
Kai Franze
Kevin Jakob
Arina Kremser
Rania Mobarak
Chang Peng
Henning Teickner
Maria Wieckhusen
Current externally funded projects:
E=OC2
ReDOCs
STRUCTOMICS
NaNaCo
SPP 2322: Soilsystems - Maddoms
H2020: Perforce3
Concluded projects:
ACEnano
DOC export from riparian zones (UFZ project)
GOKonAQua
FLUORBANK
FluorTECH
OZEOM
PFAS Non-Target-Screening
SPP 2089: Rhizoshere - MoleBIRD
TALKO
TRANSFLUOR
2024 (2)
- Lechtenfeld, O.J., Kaesler, J., Jennings, E.K., Koch, B.P. (2024):
Direct analysis of marine dissolved organic matter using LC-FT-ICR MS
Environ. Sci. Technol. 58 (10), 4637 - 4647 10.1021/acs.est.3c07219 - Wang, Q., Lechtenfeld, O.J., Rietvelt, L.C., Schuster, J., Ernst, M., Hofman-Caris, R., Kaesler, J., Wang, C., Yang, M., Yu, J., Zietzschmann, F. (2024):
How aromatic dissolved organic matter differs in competitiveness against organic micropollutant adsorption
Environ. Sci. Ecotechnol. 21 , art. 100392 10.1016/j.ese.2024.100392
2023 (9)
- Han, L., Lohse, M., Nihemaiti, M., Reemtsma, T., Lechtenfeld, O.J. (2023):
Direct non-target analysis of dissolved organic matter and disinfection by-products in drinking water
with nano-LC-FT-ICR-MS
Environ. Sci.-Wat. Res. Technol. 9 (6), 1729 - 1737 10.1039/D3EW00097D - Herzsprung, P., Kamjunke, N., Wilske, C., Friese, K., Boehrer, B., Rinke, K., Lechtenfeld, O.J., von Tümpling, W. (2023):
Data evaluation strategy for identification of key molecular formulas in dissolved organic matter as proxies for biogeochemical reactivity based on abundance differences from ultrahigh resolution mass spectrometry
Water Res. 232 , art. 119672 10.1016/j.watres.2023.119672 - Jennings, E.K., Sierra Olea, M., Kaesler, J.M., Hübner, U., Reemtsma, T., Lechtenfeld, O.J. (2023):
Stable isotope labeling for detection of ozonation byproducts in effluent organic matter with FT-ICR-MS
Water Res. 229 , art. 119477 10.1016/j.watres.2022.119477 - Lechtenfeld, O., Kaesler, J.M., Jennings, E., Koch, B.P. (2023):
Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS) data of original arctic ocean seawater (AO) and peat pore water (PPW)
Data Investigation Portal UFZ 10.48758/ufz.14331 - Lohse, M., Santangeli, M., Steininger-Mairinger, T., Oburger, E., Reemtsma, T., Lechtenfeld, O.J., Hann, S. (2023):
The effect of root hairs on exudate composition: a comparative non-targeted metabolomics approach
Anal. Bioanal. Chem. 415 (5), 823 - 840 10.1007/s00216-022-04475-9 - Min, N., Yao, J., Zhu, J., Kümmel, S., Lechtenfeld, O.J., Schaefer, T., Herrmann, H., Richnow, H.H. (2023):
Carbon and hydrogen isotope fractionation of phthalates during photocatalysis reactions in aqueous solution containing Fe(III) complexes or iron minerals
Water Res. 247 , art. 120740 10.1016/j.watres.2023.120740 - Plamper, P., Lechtenfeld, O., Herzsprung, P., Groß, A. (2023):
Temporal graph model on DOM (tegrom)
Version: v3.10-23 Zenodo 10.5281/zenodo.10025073 - Plamper, P., Lechtenfeld, O.J., Herzsprung, P., Groß, A. (2023):
A temporal graph model to predict chemical transformations in complex dissolved organic matter
Environ. Sci. Technol. 57 (46), 18116 - 18126 10.1021/acs.est.3c00351 - Sierra Olea, M., Kölle, S., Bein, E., Reemtsma, T., Lechtenfeld, O.J., Hübner, U. (2023):
Isotopically labeled ozone: A new approach to elucidate the formation of ozonation products
Water Res. 233 , art. 119740 10.1016/j.watres.2023.119740
2022 (16)
- Blaurock, K., Garthen, P., da Silva, M.P., Beudert, B., Gilfedder, B.S., Fleckenstein, J.H., Peiffer, S., Lechtenfeld, O.J., Hopp, L. (2022):
Riparian microtopography affects event-driven stream DOC concentrations and DOM quality in a forested headwater catchment
J. Geophys. Res.-Biogeosci. 127 (12), e2022JG006831 10.1029/2022JG006831 - Blaurock, K., Garthen, P., da Silva, M.P., Beudert, B., Gilfedder, B.S., Fleckenstein, J.H., Peiffer, S., Lechtenfeld, O.J., Hopp, L. (2022):
Blaurock_etal_2022_JGRBio.xlsx
figshare 10.6084/m9.figshare.19086455 - Butturini, A., Herzsprung, P., Lechtenfeld, O.J., Alcorlo, P., Benaiges-Fernandez, R., Berlanga, M., Boadella, J., Freixinos Campillo, Z., Gomez, R.M., Sanchez-Montoya, M.M., Urmeneta, J., Romaní, A.M. (2022):
Origin, accumulation and fate of dissolved organic matter in an extreme hypersaline shallow lake
Water Res. 221 , art. 118727 10.1016/j.watres.2022.118727 - Chen, S., Klotzbücher, T., Lechtenfeld, O.J., Hong, H., Liu, C., Kaiser, K., Mikutta, C., Mikutta, R. (2022):
Legacy effects of sorption determine the formation efficiency of mineral-associated soil organic matter
Environ. Sci. Technol. 56 (3), 2044 - 2053 10.1021/acs.est.1c06880 - da Silva, M.P., Kaesler, J.M., Lechtenfeld, O.J. (2022):
Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS) data of dissolved organic matter (DOM) from soils and streams in the Bavarian Forest National Park, Germany. [Data set]
Data Investigation Portal UFZ 10.48758/ufz.12908 - Halbach, K., Aulhorn, S., Lechtenfeld, O.J., Lecluse, M., Leippe, S., Reemtsma, T., Seiwert, B., Wagner, S., König, J., Luckenbach, T. (2022):
Zebrafish Oatp1d1 acts as a cellular efflux transporter of the anionic herbicide bromoxynil
Chem. Res. Toxicol. 35 (2), 315 - 325 10.1021/acs.chemrestox.1c00371 - Han, L., Lechtenfeld, O., Kaesler, J.M. (2022):
Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS) data of dissolved organic matter (DOM) and disinfection byproducts (DBP) in drinking water. [Data set]
Data Investigation Portal UFZ 10.48758/ufz.13076 - Jennings, E., Kaesler, J.M., Lechtenfeld, O. (2022):
Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS) data of stable isotope labelled ozonation products (OP) in wastewater effluent organic matter (EfOM). [Data set]
Data Investigation Portal UFZ 10.48758/ufz.12915 - Jennings, E., Kremser, A., Han, L., Kaesler, J.M., Lechtenfeld, O. (2022):
Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS) data of wastewater effluent organic matter (EfOM). (Version 1.0) [Data set]
Data Investigation Portal UFZ 10.48758/ufz.12451 - Jennings, E., Kremser, A., Han, L., Reemtsma, T., Lechtenfeld, O.J. (2022):
Discovery of polar ozonation byproducts via direct injection of effluent organic matter with online LC-FT-ICR-MS
Environ. Sci. Technol. 56 (3), 1894 - 1904 10.1021/acs.est.1c04310 - Kamjunke, N., Beckers, L.-M., Herzsprung, P., von Tümpling, W., Lechtenfeld, O., Tittel, J., Risse-Buhl, U., Rode, M., Wachholz, A., Kallies, R., Schulze, T., Krauss, M., Brack, W., Comero, S., Gawlik, B.M., Skejo, H., Tavazzi, S., Mariani, G., Borchardt, D., Weitere, M. (2022):
Lagrangian profiles of riverine autotrophy, organic matter transformation, and micropollutants at extreme drought
Sci. Total Environ. 828 , art. 154243 10.1016/j.scitotenv.2022.154243 - Lechtenfeld, O., Kaesler, J.M., Herzsprung, P. (2022):
Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS) data of dissolved organic matter (DOM) from streams in the Ammer and Steinlach catchments, Germany. [Data set]
Data Investigation Portal UFZ 10.48758/ufz.12914 - Pertzborn, D., Arolt, C., Ernst, G., Lechtenfeld, O.J., Kaesler, J., Pelzel, D., Guntinas-Lichius, O., von Eggeling, F., Hoffmann, F. (2022):
Multi-class cancer subtyping in salivary gland carcinomas with MALDI imaging and deep learning
Cancers 14 (17), art. 4342 10.3390/cancers14174342 - Tittel, J., Büttner, O., Friese, K., Lechtenfeld, O.J., Schuth, S., von Tümpling, W., Musolff, A. (2022):
Iron exports from catchments are constrained by redox status and topography
Glob. Biogeochem. Cycles 36 (1), e2021GB007056 10.1029/2021GB007056 - Wang, Q., Kaesler, J.M., Lechtenfeld, O. (2022):
Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS) data of resin and activated carbon adsorbed dissolved organic matter (DOM) from surface water. (Version 1.0) [Data set]
Data Investigation Portal UFZ 10.48758/ufz.12409 - Zherebker, A., Rukhovich, G.D., Sarycheva, A., Lechtenfeld, O.J., Nikolaev, E.N. (2022):
Aromaticity index with improved estimation of carboxyl group contribution for biogeochemical studies
Environ. Sci. Technol. 56 (4), 2729 - 2737 10.1021/acs.est.1c04575
2021 (12)
- da Silva, M.P., Blaurock, K., Beudert, B., Fleckenstein, J.H., Hopp, L., Peiffer, S., Reemtsma, T., Lechtenfeld, O.J. (2021):
Delineating source contributions to stream dissolved organic matter composition under baseflow conditions in forested headwater catchments
J. Geophys. Res.-Biogeosci. 126 (8), e2021JG006425 10.1029/2021JG006425 - Fazia, S., Amalfitano, S., Venturi, S., Pacini, N., Vazquez, S., Olaka, L.A., Tassi, F., Crognale, S., Herzsprung, P., Lechtenfeld, O.J., Cabassi, J., Capecchiacci, F., Rossetti, S., Yakimov, M.M., Vaselli, O., Harper, D.M., Butturini, A. (2021):
High concentrations of dissolved biogenic methane associated with cyanobacterial blooms in East African lake surface water
Commun. Biol. 4 , art. 845 10.1038/s42003-021-02365-x - Giannopoulos, K., Benettoni, P., Holbrook, T.R., Reemtsma, T., Wagner, S., Lechtenfeld, O.J. (2021):
Direct analysis of fulvic acids adsorbed onto capped gold nanoparticles by laser desorption ionization Fourier-transform ion cyclotron resonance mass spectrometry
Environ. Sci.-Nano 8 (8), 2336 - 2346 10.1039/d0en01253j - Han, L., Kaesler, J., Peng, C., Reemtsma, T., Lechtenfeld, O.J. (2021):
Online counter gradient LC-FT-ICR-MS enables detection of highly polar natural organic matter fractions
Anal. Chem. 93 (3), 1740 - 1748 10.1021/acs.analchem.0c04426 - Hensgens, G., Lechtenfeld, O.J., Guillemette, F., Laudon, H., Berggren, M. (2021):
Impacts of litter decay on organic leachate composition and reactivity
Biogeochemistry 154 , 99 - 117 10.1007/s10533-021-00799-3 - Herzsprung, P., Kamjunke, N., von Tümpling, W., Wilske, C., Reemtsma, T., Lechtenfeld, O.J. (2021):
Judgement and assessment of high resolution mass spectrometry investigations of DOM – Examples for identification of biogeochemical processes in waters
Vom Wasser 119 (2), 47 - 51 10.1002/vomw.202100009 - Lohse, M., Haag, R., Lippold, E., Vetterlein, D., Reemtsma, T., Lechtenfeld, O.J. (2021):
Direct imaging of plant metabolites in the rhizosphere using laser desorption ionization ultra-high resolution mass spectrometry
Front. Plant Sci. 12 , art. 753812 10.3389/fpls.2021.753812 - Muniz, M.S., Halbach, K., Araruna, I.C.A., Martins, R.X., Seiwert, B., Lechtenfeld, O., Reemtsma, T., Farias, D. (2021):
Moxidectin toxicity to zebrafish embryos: Bioaccumulation and biomarker responses
Environ. Pollut. 283 , art. 117096 10.1016/j.envpol.2021.117096 - Rummel, C.D., Lechtenfeld, O.J., Kallies, R., Benke, A., Herzsprung, P., Rynek, R., Wagner, S., Potthoff, A., Jahnke, A., Schmitt-Jansen, M. (2021):
Conditioning film and early biofilm succession on plastic surfaces
Environ. Sci. Technol. 55 (16), 11006 - 11018 10.1021/acs.est.0c07875 - Sartori Jeunon Gontijo, E., Herzsprung, P., Lechtenfeld, O.J., de Castro Bueno, C., Barth, J.A.C., Rosa, A.H., Friese, K. (2021):
Multi-proxy approach involving ultrahigh resolution mass spectrometry and self-organising maps to investigate the origin and quality of sedimentary organic matter across a subtropical reservoir
Org. Geochem. 151 , art. 104165 10.1016/j.orggeochem.2020.104165 - Werner, B.J., Lechtenfeld, O.J., Musolff, A., de Rooij, G.H., Yang, J., Gründling, R., Werban, U., Fleckenstein, J.H. (2021):
Small-scale topography explains patterns and dynamics of dissolved organic carbon exports from the riparian zone of a temperate, forested catchment
Hydrol. Earth Syst. Sci. 25 (12), 6067 - 6086 10.5194/hess-25-6067-2021 - Wilske, C., Herzsprung, P., Lechtenfeld, O.J., Kamjunke, N., Einax, J.W., von Tümpling, W. (2021):
New insights into the seasonal variation of DOM quality of a humic-rich drinking-water reservoir—coupling 2D-fluorescence and FTICR MS measurements
Water 13 (12), art. 1703 10.3390/w13121703
2020 (13)
- Butturini, A., Amalfitano, S., Herzsprung, P., Lechtenfeld, O.J., Venturi, S., Olaka, L.A., Pacini, N., Harper, D.M., Tassi, F., Fazi, S. (2020):
Dissolved organic matter in continental hydro-geothermal systems: Insights from two hot springs of the East African Rift Valley
Water 12 (12), art. 3512 10.3390/w12123512 - Butturini, A., Herzsprung, P., Lechtenfeld, O.J., Venturi, S., Amalfitano, S., Vazquez, E., Pacini, N., Harper, D.M., Tassi, F., Fazi, S. (2020):
Dissolved organic matter in a tropical saline-alkaline lake of the East African Rift Valley
Water Res. 173 , art. 115532 10.1016/j.watres.2020.115532 - da Silva, M.P., Kaesler, J.M., Reemtsma, T., Lechtenfeld, O.J. (2020):
Absorption mode spectral processing improves data quality of natural organic matter analysis by Fourier-transform ion cyclotron resonance mass spectrometry
J. Am. Soc. Mass Spectrom. 31 (7), 1615 - 1618 10.1021/jasms.0c00138 - da Silva, M.P., Sander de Carvalho, L.A., Novo, E., Jorge, D.S.F., Barbosa, C.C.F. (2020):
Use of optical absorption indices to assess seasonal variability of dissolved organic matter in Amazon floodplain lakes
Biogeosciences 17 (21), 5355 - 5364 10.5194/bg-17-5355-2020 - Giannopoulos, K., Lechtenfeld, O.J., Holbrook, T.R., Reemtsma, T., Wagner, S. (2020):
Exploring the potential of laser desorption ionization time-of-flight mass spectrometry to analyse organic capping agents on inorganic nanoparticle surfaces
Anal. Bioanal. Chem. 412 (22), 5261 - 5271 10.1007/s00216-020-02740-3 - Herzsprung, P., Wentzky, V.C., Kamjunke, N., von Tümpling, W., Wilske, C., Friese, K., Boehrer, B., Reemtsma, T., Rinke, K., Lechtenfeld, O.J. (2020):
Improved understanding of dissolved organic matter processing in freshwater using complementary experimental and machine learning approaches
Environ. Sci. Technol. 54 (21), 13556 - 13565 10.1021/acs.est.0c02383 - Kamjunke, N., Lechtenfeld, O.J., Herzsprung, P. (2020):
Quality of dissolved organic matter driven by autotrophic and heterotrophic microbial processes in a large river
Water 12 (6), art. 1577 10.3390/w12061577 - Lohse, M., Blaser, S.R.G.A., Vetterlein, D., Schlüter, S., Oburger, E., Reemtsma, T., Lechtenfeld, O.J. (2020):
Online nano solid phase extraction Fourier-transform ion cyclotron resonance mass spectrometry workflow to analyze small scale gradients of soil solution organic matter in the rhizosphere
Anal. Chem. 92 (15), 10442 - 10449 10.1021/acs.analchem.0c00946 - Lohse, M., Dusny, C., Kaesler, J., Lechtenfeld, O.J. (2020):
MRMS powered single cell metabolomics – Quantification of picogram amounts of a biocatalytic product from few living cells
Bruker Daltonics, 10.5281/zenodo.3947765 - Tayyebi Sabet Khomami, N., Philippe, A., Abu Quba, A.A., Lechtenfeld, O.J., Guigner, J.-M., Heissler, S., Schaumann, G.E. (2020):
Validation of a field deployable reactor for in situ formation of NOM-engineered nanoparticle corona
Environ. Sci.-Nano 7 (2), 486 - 500 10.1039/c9en01090d - Wilske, C., Herzsprung, P., Lechtenfeld, O.J., Kamjunke, N., von Tümpling, W. (2020):
Photochemically induced changes of dissolved organic matter in a humic‐rich and forested stream
Water 12 , art. 331 10.3390/w12020331 - Zherebker, A., Kim, S., Schmitt-Kopplin, P., Spencer, R.G.M., Lechtenfeld, O.J., Podgorski, D.C., Hertkorn, N., Harir, M., Nurfajin, N., Koch, B., Nikolaev, E.N., Shirshin, E.A., Berezin, S.A., Kats, D.S., Rukhovich, G.D., Perminova, I.V. (2020):
Interlaboratory comparison of humic substances compositional space as measured by Fourier transform ion cyclotron resonance mass spectrometry (IUPAC Technical Report)
Pure Appl. Chem. 92 (9), 1447 - 1467 10.1515/pac-2019-0809 - Zherebker, A., Lechtenfeld, O.J., Sarycheva, A., Kostyukevich, Y., Kharybin, O., Fedoros, E.I., Nikolaev, E.N. (2020):
Refinement of compound aromaticity in complex organic mixtures by stable isotope label assisted ultrahigh-resolution mass spectrometry
Anal. Chem. 92 (13), 9032 - 9038 10.1021/acs.analchem.0c01208
2019 (6)
- Chen, S.-C., Musat, N., Lechtenfeld, O.J., Paschke, H., Schmidt, M., Said, N., Popp, D., Calabrese, F., Stryhanyuk, H., Jaekel, U., Zhu, Y.-G., Joye, S.B., Richnow, H.-H., Widdel, F., Musat, F. (2019):
Anaerobic oxidation of ethane by archaea from a marine hydrocarbon seep
Nature 568 (7750), 108 - 111 10.1038/s41586-019-1063-0 - Dusny, C., Lohse, M., Reemtsma, T., Schmid, A., Lechtenfeld, O.J. (2019):
Quantifying a biocatalytic product from a few living microbial cells using microfluidic cultivation coupled to FT-ICR-MS
Anal. Chem. 91 (11), 7012 - 7018 10.1021/acs.analchem.9b00978 - Lian, S., Wu, L., Nikolausz, M., Lechtenfeld, O.J., Richnow, H.H. (2019):
2H and 13C isotope fractionation analysis of organophosphorus compounds for characterizing transformation reactions in biogas slurry: Potential for anaerobic treatment of contaminated biomass
Water Res. 163 , art. 114882 10.1016/j.watres.2019.114882 - Spranger, T., van Pinxteren, D., Reemtsma, T., Lechtenfeld, O.J., Herrmann, H. (2019):
2D liquid chromatographic fractionation with ultra-high resolution MS analysis resolves a vast molecular diversity of tropospheric particle organics
Environ. Sci. Technol. 53 (19), 11353 - 11363 10.1021/acs.est.9b03839 - Vernet, M., Geibert, W., Hoppema, M., Brown, P.J., Haas, C., Hellmer, H.H., Jokat, W., Jullion, L., Mazloff, M., Bakker, D.C.E., Brearley, J.A., Croot, P., Hattermann, T., Hauck, J., Hillenbrand, C.-D., Hoppe, C.J.M., Huhn, O., Koch, B.P., Lechtenfeld, O.J., Meredith, M.P., Naveira Garabato, A.C., Nöthig, E.-M., Peeken, I., Rutgers van der Loeff, M.M., Schmidtko, S., Schröder, M., Strass, V.H., Torres-Valdés, S., Verdy, A. (2019):
The Weddell Gyre, Southern Ocean: present knowledge and future challenges
Rev. Geophys. 57 (3), 623 - 708 10.1029/2018RG000604 - Werner, B.J., Musolff, A., Lechtenfeld, O.J., de Rooij, G.H., Oosterwoud, M.R., Fleckenstein, J.H. (2019):
High-frequency measurements explain quantity and quality of dissolved organic carbon mobilization in a headwater catchment
Biogeosciences 16 , 4497 - 4516 10.5194/bg-16-4497-2019
2018 (4)
- Bercovici, S.K., Koch, B.P., Lechtenfeld, O.J., McCallister, S.L., Schmitt-Kopplin, P., Hansell, D.A. (2018):
Aging and molecular changes of dissolved organic matter between two deep oceanic end-members
Glob. Biogeochem. Cycles 32 (10), 1449 - 1456 10.1029/2017GB005854 - Schlitzer, R., Anderson, R.F., Dodas, E.M., Lohan, M., Geibert, W., Tagliabue, A., Bowie, A., Jeandel, C., Maldonado, M.T., Landing, W.M., Cockwell, D., Abadie, C., Abouchami, W., Achterberg, E.P., Agather, A., Aguliar-Islas, A., van Aken, H.M., Andersen, M., Archer, C., Lechtenfeld, O.J., Auro, M., et al. (2018):
The GEOTRACES Intermediate Data Product 2017
Chem. Geol. 493 , 210 - 223 10.1016/j.chemgeo.2018.05.040 - Wu, L., Chládková, B., Lechtenfeld, O.J., Lian, S., Schindelka, J., Herrmann, H., Richnow, H.H. (2018):
Characterizing chemical transformation of organophosphorus compounds by 13C and 2H stable isotope analysis
Sci. Total Environ. 615 , 20 - 28 10.1016/j.scitotenv.2017.09.233 - Wünsch, U.J., Geuer, J.K., Lechtenfeld, O.J., Koch, B.P., Murphy, K.R., Stedmon, C.A. (2018):
Quantifying the impact of solid-phase extraction on chromophoric dissolved organic matter composition
Mar. Chem. 207 , 33 - 41 10.1016/j.marchem.2018.08.010
2017 (3)
- Koch, B.P., Ksionzek, K.B., Lechtenfeld, O.J., McCallister, S.L., Schmitt-Kopplin, P., Geuer, J.K., Geibert, W. (2017):
Response to comment on "Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory"
Science 356 (6340), 813 - 813 10.1126/science.aam6328 - Raeke, J., Lechtenfeld, O.J., Seiwert, B., Meier, T., Riemenschneider, C., Reemtsma, T. (2017):
Photochemically induced bound residue formation of carbamazepine with dissolved organic matter
Environ. Sci. Technol. 51 (10), 5523 - 5530 10.1021/acs.est.7b00823 - Raeke, J., Lechtenfeld, O.J., Tittel, J., Oosterwoud, M.R., Bornmann, K., Reemtsma, T. (2017):
Linking the mobilization of dissolved organic matter in catchments and its removal in drinking water treatment to its molecular characteristics
Water Res. 113 , 149 - 159 10.1016/j.watres.2017.01.066
2016 (3)
- Ksionzek, K.B., Lechtenfeld, O.J., McCallister, S.L., Schmitt-Kopplin, P., Geuer, J.K., Geibert, W., Koch, B.P. (2016):
Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory
Science 354 (6311), 456 - 459 10.1126/science.aaf7796 - Laso-Pérez, R., Wegener, G., Knittel, K., Widdel, F., Harding, K.J., Krukenberg, V., Meier, D.V., Richter, M., Tegetmeyer, H.E., Riedel, D., Richnow, H.-H., Adrian, L., Reemtsma, T., Lechtenfeld, O.J., Musat, F. (2016):
Thermophilic archaea activate butane via alkyl-coenzyme M formation
Nature 539 (7629), 396 - 401 10.1038/nature20152 - Raeke, J., Lechtenfeld, O.J., Wagner, M., Herzsprung, P., Reemtsma, T. (2016):
Selectivity of solid phase extraction of freshwater dissolved organic matter and its effect on ultrahigh resolution mass spectra
Environ. Sci.-Process Impacts 18 (7), 918 - 927 10.1039/c6em00200e
2015 (1)
- Lechtenfeld, O.J., Hertkorn, N., Shen, Y., Witt, M., Benner, R. (2015):
Marine sequestration of carbon in bacterial metabolites
Nat. Commun. 6 , art. 6711 10.1038/ncomms7711
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Bruker ScimaX 7T with
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Thermo Ultimate 3000 RSLC with
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Thermo Ultimate 3000 RSLCnano with for ultra low volume applications. |
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Dimatec DIMATOC 2000 TOC-TNb Analysator |
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LCTech FREESTYLE SPE robotic system |
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Repligen KrosFlo KR2i TFF/UF |
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Q-LAB Q-SUN Xe-1 solar simulator |
We also have access to the analytical facilities of the Department Analytical Chemistry and ProVIS.