Steffen Kümmel
Contact / Address
E-mail:
Phone +49 (0) 341 6025 1362
Fax +49 (0) 341 6025 1443
Department Technical Biogeochemistry
Helmholtz Centre for Environmental Research - UFZ
Permoserstraße 15,
04318 Leipzig, Germany
Curriculum Vitae
since 2022 | Scientific lab manager of the Isotope Laboratory - Leipzig, Department Technical Biogeochemistry (up to 2023 Isotope Biogeochemistry) at the UFZ |
2016 – 2022 | PostDoc, Department Isotope Biogeochemistry at the UFZ |
2011 – 2016 | PhD-Student, University of Freiburg (Faculty of Biology) and UFZ (Department Isotope Biogeochemistry) |
2008 – 2010 | Master of Science in Biochemistry, University of Leipzig |
2005 – 2008 | Bachelor of Science in Biochemistry, University of Leipzig |
Research
My main interest is the development of analytical methods for the analysis of stable isotopes in order to improve the understanding of the lifecycle of chemicals in the environment. My research focuses on online stable isotope analysis using e.g. elemental analyzer (EA), gas chromatography (GC) or liquid chromatography (LC) coupled to conversion units and mass detectors, such as isotope-rato mass spectrometer (IRMS) and multi-collector ion coupled plasma mass spectrometer (MC-ICPMS). For more information on my expertise and technical facilities please consult the LSI website .Publications & other contributions
Investigating sediment sources using compound-specific stable isotopes and conventional fingerprinting methods in an agricultural loess catchment
Catena 246 , art. 108336 10.1016/j.catena.2024.108336
Enrichment of ANME‐2 dominated anaerobic methanotrophy from cold seep sediment in an external ultrafiltration membrane bioreactor
Eng. Life Sci. 18 (6 ), 368 - 378 10.1002/elsc.201700148
Quantifying energy expenditure in Göttingen Minipigs with the 13C-bicarbonate method under basal and drug-treated conditions
Clin. Nutr. ESPEN 58 , 388 - 396 10.1016/j.clnesp.2023.10.041
Expanding the calibration range of compound-specific chlorine isotope analysis by the preparation of a 37Cl-enriched tetrachloroethylene
Rapid Commun. Mass Spectrom. 36 (21), e9378 10.1002/rcm.9378
Stable isotope probing-nanoFTIR for quantitation of cellular metabolism and observation of growth-dependent spectral features
Small 20 (36), art. 2400289 10.1002/smll.202400289
Distinct carbon isotope fractionation signatures during biotic and abiotic reductive transformation of chlordecone
Environ. Sci. Technol. 52 (6), 3615 - 3624 10.1021/acs.est.7b05394
Effect of tannic acid combined with fluoride and lignosulfonic acid on anaerobic digestion in the agricultural waste management chain
Bioresour. Technol. 307 , art. 123171 10.1016/j.biortech.2020.123171
Tracking deuterium uptake in hydroponically grown maize roots using correlative helium ion microscopy and Raman micro-spectroscopy
Plant Methods 19 , art. 71 10.1186/s13007-023-01040-y
Multi-element compound specific stable isotope analysis of chlorinated aliphatic contaminants derived from chlorinated pitches
Sci. Total Environ. 640-641 , 153 - 162 10.1016/j.scitotenv.2018.05.285
Liquid chromatography/isotope ratio mass spectrometry analysis of halogenated benzoates for characterization of the underlying degradation reaction in Thauera chlorobenzoica CB‐1T
Rapid Commun. Mass Spectrom. 32 (11), 906 - 912 10.1002/rcm.8113
Optimization of on-line hydrogen stable isotope ratiomeasurements of halogen- and sulfur-bearing organic compounds using elemental analyzer–chromium/high-temperature conversion isotope ratio mass spectrometry (EA-Cr/HTC-IRMS)
Rapid Commun. Mass Spectrom. 31 (6), 475 - 484 10.1002/rcm.7810
Multi-element isotopic evidence for monochlorobenzene and benzene degradation under anaerobic conditions in contaminated sediments
Water Res. 207 , art. 117809 10.1016/j.watres.2021.117809
Requirements for chromium reactors for use in the determination of H isotopes in compound-specific stable isotope analysis cf chlorinated compounds
Anal. Chem. 92 (3), 2383 - 2387 10.1021/acs.analchem.9b04737
Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission
Limnol. Oceanogr. 65 (12), 2853 - 2865 10.1002/lno.11557
Hydrocarbons, hydrogen, and organic acids generation by ball milling and batch incubation of sedimentary rocks
Appl. Geochem. 10.1016/j.apgeochem.2024.106160
Dehalococcoides mccartyi strain CBDB1 takes up protons from the cytoplasm to reductively dehalogenate organohalides indicating a new modus of proton motive force generation
Front. Microbiol. 14 , art. 1305108 10.3389/fmicb.2023.1305108
Perspectives of compound-specific isotope analysis of organic contaminants for assessing environmental fate and managing chemical pollution
Nat. Water 2 (1), 14 - 30 10.1038/s44221-023-00176-4
Continuous-flow stable sulfur isotope analysis of organic and inorganic compounds by EA-MC-ICPMS
Anal. Chem. 96 (21), 8510 - 8517 10.1021/acs.analchem.4c00439
CO2BioPerm — influence of bio-geochemical CO2-transformation processes on the long-term permeability
In: Liebscher, A., Münch, U. (eds.)
Geological Storage of CO2 – Long Term Security Aspects. GEOTECHNOLOGIEN Science Report No. 22
Advanced Technologies in Earth Sciences
Springer, Berlin, Heidelberg, p. 73 - 96 10.1007/978-3-319-13930-2_4
Characterization of anaerobic biotransformation of hexachlorocyclohexanes by novel microbial consortia enriched from channel and river sediments
J. Hazard. Mater. 476 , art. 135198 10.1016/j.jhazmat.2024.135198
Distinct nitrogen cycling and steep chemical gradients in Trichodesmium colonies
ISME J. 14 (2), 399 - 412 10.1038/s41396-019-0514-9
Anaerobic naphthalene degradation by sulfate-reducing Desulfobacteraceae from various anoxic aquifers
FEMS Microbiol. Ecol. 91 (3), fiv006 10.1093/femsec/fiv006
Simultaneous compound-specific analysis of δ33S and δ34S in organic compounds by GC-MC-ICPMS using medium- and low-mass-resolution modes
Anal. Chem. 92 (21), 14685 - 14692 10.1021/acs.analchem.0c03253
Evidence for benzylsuccinate synthase subtypes obtained by using stable isotope tools
J. Bacteriol. 195 (20), 4660 - 4667 10.1128/JB.00477-13
Hydrogen isotope fractionation as a tool to identify aerobic and anaerobic PAH biodegradation
Environ. Sci. Technol. 50 (6), 3091 - 3100 10.1021/acs.est.5b04819
Toward improved accuracy in chlorine isotope analysis: Synthesis routes for in-house standards and characterization via complementary mass spectrometry methods
Anal. Chem. 91 , 12290 - 12297 10.1021/acs.analchem.9b02463
Carbon and hydrogen stable isotope analysis for characterizing the chemical degradation of tributyl phosphate
Chemosphere 212 , 133 - 142 10.1016/j.chemosphere.2018.08.034
Direct phototransformation of sulfamethoxazole characterized by four-dimensional element compound specific isotope analysis
Environ. Sci. Technol. 58 (23), 10322 - 10333 10.1021/acs.est.4c02666
Uptake of α-HCH by wheat from the gas phase and translocation to soil analyzed by a stable carbon isotope labeling experiment
Chemosphere 264 (Part 2), art. 128489 10.1016/j.chemosphere.2020.128489
Uptake and transformation of hexachlorocyclohexane isomers (HCHs) in tree growth rings at a contaminated field site
Environ. Sci. Technol. 57 (23), 8776 - 8784 10.1021/acs.est.3c01929
Tracking the transformation of persistent organic pollutants in food webs using multi element isotope and enantiomer fractionation
J. Hazard. Mater. 469 , art. 134046 10.1016/j.jhazmat.2024.134046
Soil from a hexachlorocyclohexane contaminated field site inoculates wheat in a pot experiment to facilitate the microbial transformation of β-hexachlorocyclohexane examined by compound-specific isotope analysis
Environ. Sci. Technol. 55 (20), 13812 - 13821 10.1021/acs.est.1c03322
Determination of stable hydrogen isotopic composition and isotope enrichment factor at low hydrogen concentration
Anal. Chem. 95 (44), 16272 - 16278 10.1021/acs.analchem.3c03214
Compound-specific isotope analysis and enantiomer fractionation to characterize the transformation of hexachlorocyclohexane isomers in a soil–wheat pot system
Environ. Sci. Technol. 54 (14), 8690 - 8698 10.1021/acs.est.9b07609
Characterizing the biotransformation of hexachlorocyclohexanes in wheat using compound-specific stable isotope analysis and enantiomer fraction analysis
J. Hazard. Mater. 406 , art. 124301 10.1016/j.jhazmat.2020.124301
Stable isotope fractionation associated with the synthesis of hexachlorocyclohexane isomers for characterizing sources
Chemosphere 296 , art. 133938 10.1016/j.chemosphere.2022.133938
Uptake and metabolization of HCH isomers in trees examined over an annual growth period by compound-specific isotope analysis and enantiomer fractionation
Environ. Sci. Technol. 56 (14), 10120 - 10130 10.1021/acs.est.2c02697
Characterization of hexachlorocyclohexane isomer dehydrochlorination by LinA1 and LinA2 using multi-element compound-specific stable isotope analysis
Environ. Sci. Technol. 56 (23), 16848 - 16856 10.1021/acs.est.2c05334
Dual C–Cl isotope analysis for characterizing the anaerobic transformation of α, β, γ, and δ-hexachlorocyclohexane in contaminated aquifers
Water Res. 184 , art. 116128 10.1016/j.watres.2020.116128
H2 kinetic isotope fractionation superimposed by equilibrium isotope fractionation during hydrogenase activity of D. vulgaris strain Miyazaki
Front. Microbiol. 10 , art. 1545 10.3389/fmicb.2019.01545
Analysis of carbon and hydrogen stable isotope ratios of phenolic compounds: method development and biodegradation applications
ACS ES&T Water 2 (1), 32 - 39 10.1021/acsestwater.1c00218
Humic substance photosensitized degradation of phthalate characterized by 2H and 13C isotope fractionation
Environ. Sci. Technol. 57 (5), 1930 - 1939 10.1021/acs.est.2c06783
Carbon isotope fractionation of di-(2-ethylhexyl)-phthalate during photosensitized degradation by •OH and SO4·- for characterization of reaction mechanisms
Chem. Eng. J. 475 , art. 145950 10.1016/j.cej.2023.145950
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
A PCR-based assay for the detection of anaerobic naphthalene degradation
FEMS Microbiol. Lett. 354 (1), 55 - 59 10.1111/1574-6968.12429
Source differentiation of BTEX compounds in groundwater contaminated due to refinery activities
J. Environ. Manage. 366 , art. 121893 10.1016/j.jenvman.2024.121893
Recent advances in multi-element compound-specific stable isotope analysis of organohalides: Achievements, challenges and prospects for assessing environmental sources and transformation
Trends Environ. Anal. Chem. 11 , 1 - 8 10.1016/j.teac.2016.04.001
Natural attenuation of sulfonamides and metabolites in contaminated groundwater – Review, advantages and challenges of current documentation techniques
Water Res. 254 , art. 121416 10.1016/j.watres.2024.121416
Carbon and hydrogen stable isotope fractionation of sulfamethoxazole during anaerobic transformation catalyzed by Desulfovibrio vulgaris Hildenborough
Chemosphere 311, Part 2 , art. 136923 10.1016/j.chemosphere.2022.136923
Disentangling effects of multiple agricultural stressors on benthic and hyporheic nitrate uptake
Biogeochemistry 167 (3), 287 - 299 10.1007/s10533-024-01130-6
Investigation of active site amino acid influence on carbon and chlorine isotope fractionation during reductive dechlorination
FEMS Microbiol. Ecol. 98 (8), fiac072 10.1093/femsec/fiac072
Vitamin B12 as a source of variability in isotope effects for chloroform biotransformation by Dehalobacter
MicrobiologyOpen 13 (4), e1433 10.1002/mbo3.1433
The deep-subsurface sulfate reducer Desulfotomaculum kuznetsovii employs two methanol-degrading pathways
Nat. Commun. 9 , art. 239 10.1038/s41467-017-02518-9
Calculation of single cell assimilation rates from SIP-nanoSIMS-derived isotope ratios: a comprehensive approach
Front. Microbiol. 9 , art. 2342 10.3389/fmicb.2018.02342
Iron corrosion by methanogenic archaea characterized by stable isotope effects and crust mineralogy
Environ. Microbiol. 24 (2), 583 - 595 10.1111/1462-2920.15658
Individual stages of bacterial dichloromethane degradation mapped by stable carbon and chlorine isotope analysis
J. Environ. Sci. 78 , 147 - 160 10.1016/j.jes.2018.09.008
Dual C and Cl compound-specific isotope analysis and metagenomic insights into the degradation of the pesticide methoxychlor
J. Hazard. Mater. 480 , art. 135929 10.1016/j.jhazmat.2024.135929
Novel extraction methods and compound-specific isotope analysis of methoxychlor in environmental water and aquifer slurry samples
Sci. Total Environ. 931 , art. 172858 10.1016/j.scitotenv.2024.172858
Tracing organic carbon and microbial community structure in mineralogically different soils exposed to redox fluctuations
Biogeochemistry 143 (1), 31 - 54 10.1007/s10533-019-00548-7
Validation of GC–IRMS techniques for δ13C and δ2H CSIA of organophosphorus compounds and their potential for studying the mode of hydrolysis in the environment
Anal. Bioanal. Chem. 409 (10), 2581 - 2590 10.1007/s00216-017-0203-3
Carbon, hydrogen and nitrogen stable isotope fractionation allow characterizing the reaction mechanisms of 1H-benzotriazole aqueous phototransformation
Water Res. 203 , art. 117519 10.1016/j.watres.2021.117519
Stable isotopes and nanoSIMS single-cell imaging reveals soil plastisphere colonizers able to assimilate sulfamethoxazole
Environ. Pollut. 355 , art. 124197 10.1016/j.envpol.2024.124197
Anaerobic biotransformation of hexachlorocyclohexane isomers in aqueous condition: dual C-Cl isotope fractionation and impact on microbial community compositions
Water Res. 254 , art. 121389 10.1016/j.watres.2024.121389
Multi-element (2H, 13C, 37Cl) isotope analysis to characterize reductive transformation of α-, β-, γ-, and δ-HCH isomers by cobalamin and Fe0 nanoparticles
J. Hazard. Mater. 480 , art. 135932 10.1016/j.jhazmat.2024.135932