Steffen Kümmel
Contact / Address
Phone +49 (0) 341 235 1362
Fax +49 (0) 341 235 1443
Department Isotope Biogeochemistry
Helmholtz Centre for Environmental Research - UFZ
Permoserstraße 15,
04318 Leipzig, Germany

Curriculum Vitae
since 2022 | Scientific lab manager of the Isotope Lab - Leipzig at the UFZ, Department Isotope Biogeochemistry |
2016 – 2022 | PostDoc at the UFZ, Department Isotope Biogeochemistry |
2011 – 2016 | PhD-Student at the UFZ, Department Isotope Biogeochemistry |
2008 – 2010 | Master of Science in Biochemistry; University of Leipzig, Germany |
2005 – 2008 | Bachelor of Science in Biochemistry; University of Leipzig, Germany |
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).Publications & other contributions
Enrichment of ANME‐2 dominated anaerobic methanotrophy from cold seep sediment in an external ultrafiltration membrane bioreactor
Eng. Life Sci. 18 (6 ), 368 - 378
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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
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Distinct carbon isotope fractionation signatures during biotic and abiotic reductive transformation of chlordecone
Environ. Sci. Technol. 52 (6), 3615 - 3624
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Effect of tannic acid combined with fluoride and lignosulfonic acid on anaerobic digestion in the agricultural waste management chain
Bioresour. Technol. 307 , art. 123171
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Tracking deuterium uptake in hydroponically grown maize roots using correlative helium ion microscopy and Raman micro-spectroscopy
Plant Methods 19 , art. 71
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Multi-element compound specific stable isotope analysis of chlorinated aliphatic contaminants derived from chlorinated pitches
Sci. Total Environ. 640-641 , 153 - 162
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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
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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
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Multi-element isotopic evidence for monochlorobenzene and benzene degradation under anaerobic conditions in contaminated sediments
Water Res. 207 , art. 117809
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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
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Photosynthesis‐driven methane production in oxic lake water as an important contributor to methane emission
Limnol. Oceanogr. 65 (12), 2853 - 2865
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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
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Distinct nitrogen cycling and steep chemical gradients in Trichodesmium colonies
ISME J. 14 (2), 399 - 412
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Anaerobic naphthalene degradation by sulfate-reducing Desulfobacteraceae from various anoxic aquifers
FEMS Microbiol. Ecol. 91 (3), fiv006
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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
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Evidence for benzylsuccinate synthase subtypes obtained by using stable isotope tools
J. Bacteriol. 195 (20), 4660 - 4667
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Hydrogen isotope fractionation as a tool to identify aerobic and anaerobic PAH biodegradation
Environ. Sci. Technol. 50 (6), 3091 - 3100
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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
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Carbon and hydrogen stable isotope analysis for characterizing the chemical degradation of tributyl phosphate
Chemosphere 212 , 133 - 142
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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
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Uptake and transformation of hexachlorocyclohexane isomers (HCHs) in tree growth rings at a contaminated field site
Environ. Sci. Technol. 57 (23), 8776 - 8784
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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
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Determination of stable hydrogen isotopic composition and isotope enrichment factor at low hydrogen concentration
Anal. Chem. 95 (44), 16272 - 16278
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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
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Characterizing the biotransformation of hexachlorocyclohexanes in wheat using compound-specific stable isotope analysis and enantiomer fraction analysis
J. Hazard. Mater. 406 , art. 124301
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Stable isotope fractionation associated with the synthesis of hexachlorocyclohexane isomers for characterizing sources
Chemosphere 296 , art. 133938
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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
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Characterization of hexachlorocyclohexane isomer dehydrochlorination by LinA1 and LinA2 using multi-element compound-specific stable isotope analysis
Environ. Sci. Technol. 56 (23), 16848 - 16856
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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
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H2 kinetic isotope fractionation superimposed by equilibrium isotope fractionation during hydrogenase activity of D. vulgaris strain Miyazaki
Front. Microbiol. 10 , art. 1545
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Analysis of carbon and hydrogen stable isotope ratios of phenolic compounds: method development and biodegradation applications
ACS ES&T Water 2 (1), 32 - 39
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Humic substance photosensitized degradation of phthalate characterized by 2H and 13C isotope fractionation
Environ. Sci. Technol. 57 (5), 1930 - 1939
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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
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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
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A PCR-based assay for the detection of anaerobic naphthalene degradation
FEMS Microbiol. Lett. 354 (1), 55 - 59
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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
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Carbon and hydrogen stable isotope fractionation of sulfamethoxazole during anaerobic transformation catalyzed by Desulfovibrio vulgaris Hildenborough
Chemosphere 311, Part 2 , art. 136923
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Investigation of active site amino acid influence on carbon and chlorine isotope fractionation during reductive dechlorination
FEMS Microbiol. Ecol. 98 (8), fiac072
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The deep-subsurface sulfate reducer Desulfotomaculum kuznetsovii employs two methanol-degrading pathways
Nat. Commun. 9 , art. 239
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Calculation of single cell assimilation rates from SIP-nanoSIMS-derived isotope ratios: a comprehensive approach
Front. Microbiol. 9 , art. 2342
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Iron corrosion by methanogenic archaea characterized by stable isotope effects and crust mineralogy
Environ. Microbiol. 24 (2), 583 - 595
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Individual stages of bacterial dichloromethane degradation mapped by stable carbon and chlorine isotope analysis
J. Environ. Sci. 78 , 147 - 160
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Tracing organic carbon and microbial community structure in mineralogically different soils exposed to redox fluctuations
Biogeochemistry 143 (1), 31 - 54
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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
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Carbon, hydrogen and nitrogen stable isotope fractionation allow characterizing the reaction mechanisms of 1H-benzotriazole aqueous phototransformation
Water Res. 203 , art. 117519
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