Collaborateurs

Thomas Hofstetter

Portrait

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Projets

N-nitrosamines such as N-nitrosodimethylamine (NDMA) are of public and regulatory concern because these potent carcinogens can be formed as unintented by-products during drinking and waste water disinfection/oxidation.
Nitroaromatic explosives persist in the subsurface in different phases (e.g., bound to soil or sediment matrix or as solid-phase residues) and it is extremely challenging to assess biotic and mineral-catalyzed degradation. With the combined analysis of C, N, and H isotope fractionation, we can quantify transformation, even if it takes place via several potentially competing pathways over time-scales of decades.
A new approach for the CSIA of aquatic micropollutants in the sub-microgram/liter range

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Publications

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Melsbach, A.; Torrentó, C.; Ponsin, V.; Bolotin, J.; Lachat, L.; Prasuhn, V.; Hofstetter, T. B.; Hunkeler, D.; Elsner, M. (2020) Dual-element isotope analysis of desphenylchloridazon to investigate its environmental fate in a systematic field study: a long-term lysimeter experiment, Environmental Science and Technology, 54(7), 3929-3939, doi:10.1021/acs.est.9b04606, Institutional Repository
Chen, G.; Hofstetter, T. B.; Gorski, C. A. (2020) Role of carbonate in thermodynamic relationships describing pollutant reduction kinetics by iron oxide-bound Fe2, Environmental Science and Technology, 54(16), 10109-10117, doi:10.1021/acs.est.0c02959, Institutional Repository
Bopp, C. E.; Kohler, H. P. E.; Hofstetter, T. B. (2020) Enzyme kinetics of organic contaminant oxygenations, Chimia, 74(3), 108-114, doi:10.2533/chimia.2020.108, Institutional Repository
Berens, M. J.; Hofstetter, T. B.; Bolotin, J.; Arnold, W. A. (2020) Assessment of 2,4-dinitroanisole transformation using compound-specific isotope analysis after in situ chemical reduction of iron oxides, Environmental Science and Technology, 54(9), 5520-5531, doi:10.1021/acs.est.9b07616, Institutional Repository
Aeppli, M.; Vranic, S.; Kaegi, R.; Kretzschmar, R.; Brown, A. R.; Voegelin, A.; Hofstetter, T. B.; Sander, M. (2019) Decreases in iron oxide reducibility during microbial reductive dissolution and transformation of ferrihydrite, Environmental Science and Technology, 53(15), 8736-8746, doi:10.1021/acs.est.9b01299, Institutional Repository
Sander, M.; Hofstetter, T. B.; Gorski, C. A. (2015) Electrochemical analyses of redox-active iron minerals: A review of nonmediated and mediated approaches, Environmental Science and Technology, 49(10), 5862-5878, doi:10.1021/acs.est.5b00006, Institutional Repository
Schwarzenbach, R. P.; Egli, T.; Hofstetter, T. B.; von Gunten, U.; Wehrli, B. (2010) Global water pollution and human health, Annual Review of Environment and Resources, 35, 109-136, doi:10.1146/annurev-environ-100809-125342, Institutional Repository
Elsner, M.; Jochmann, M. A.; Hofstetter, T. B.; Hunkeler, D.; Bernstein, A.; Schmidt, T. C.; Schimmelmann, A. (2012) Current challenges in compound-specific stable isotope analysis of environmental organic contaminants, Analytical and Bioanalytical Chemistry, 403(9), 2471-2491, doi:10.1007/s00216-011-5683-y, Institutional Repository

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Adresse

E-Mail: thomas.hofstetter@eawag.ch
Téléphone: +41 58 765 5076
Fax: +41 58 765 5802
Adresse: Eawag
Überlandstrasse 133
8600 Dübendorf
Bureau: BU E13

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Expert en

isotopes, micropolluants

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