Publications of F. Keppler

Anhäuser, T.; Greule, M.; Polag, D.; Bowen, G. J.; Keppler, F.: Mean annual temperatures of mid-latitude regions derived from δ² H values of wood lignin methoxyl groups and its implications for paleoclimate studies. Science of the Total Environment 574, pp. 1276 - 1282 (2017)

Riechelmann, D. F. C.; Greule, M.; Siegwolf, R. T. W.; Anhäuser, T.; Esper, J.; Keppler, F.: Warm season precipitation signal in δ2H values of wood lignin methoxyl groups from high elevation larch trees in Switzerland. Rapid Communications in Mass Spectrometry 31 (19), pp. 1589 - 1598 (2017)

Lenhart, K.; Klintzsch, T.; Langer, G.; Nehrke, G.; Bunge, M.; Schnell, S.; Keppler, F.: Evidence for methane production by marine algae (Emiliana huxleyi) and its implication for the methane paradox in oxic waters. Biogeosciences 13, pp. 3163 - 3174 (2016)

Riechelmann, D. F. C.; Greule, M.; Treydte, K.; Esper , J.; Keppler, F.: Climate signals in δ¹³ of wood lignin methoxyl groups from high-elevation larch trees. Palaeogeography, Palaeoclimatology, Palaeoecology 445, pp. 60 - 71 (2016)

Greule, M.; Mosandl, A.; Hamilton, J. T. G.; Keppler, F.: Comment on Authenticity and Traceability of Vanilla Flavors by Analysis of Stable Isotopes of Carbon and Hydrogen. Journal of Agricultural and Food Chemistry 63 (21), pp. 5305 - 5306 (2015)

Greule, M.; Rossmann, A.; Schmidt, H.-L.; Mosandl, A.; Keppler, F.: A Stable Isotope Approach to Assessing Water Loss in Fruits and Vegetables during Storage. Journal of Agricultural and Food Chemistry 63 (7), pp. 1974 - 1981 (2015)

Lenhart, K.; Althoff, F.; Greule, M.; Keppler, F.: Technical Note: Methionine, a precursor of methane in living plants. Biogeosciences 12 (6), pp. 1907 - 1914 (2015)

Lenhart, K.; Weber, B.; Elbert, W.; Steinkamp, J.; Clough, T.; Crutzen, P.; Pöschl, U.; Keppler, F.: Nitrous oxide and methane emissions from cryptogamic covers. Global Change Biology 21 (10), pp. 3889 - 3900 (2015)

Althoff, F.; Benzing, K.; Comba, P.; McRoberts, C.; Boyd, D. R.; Greiner, S.; Keppler, F.: Abiotic methanogenesis from organosulphur compounds under ambient conditions. Nature Communications 5, 4205 (2014)

Polag, D.; Krapf, L. C.; Heuwinkel, H.; Laukenmann, S.; Lelieveld, J.; Keppler, F.: Stable carbon isotopes of methane for real- time process monitoring in anaerobic digesters. Engineering in Life Sciences 14 (2), pp. 153 - 160 (2014)

Anhäuser, T.; Sirocko, F.; Greule, M.; Esper, J.; Keppler, F.: D/H ratios of methoxyl groups of the sedimentary organic matter of Lake Holzmaar (Eifel, Germany): A potential palaeoclimate/-hydrology proxy. Geochimica et Cosmochimica Acta 142, pp. 39 - 52 (2014)

Horst, A.; Holmstrand, H.; Andersson, P.; Thornton, B. F.; Wishkerman, A.; Keppler, F.; Gustafsson, O.: Stable bromine isotopic composition of methyl bromide released from plant matter. Geochimica et Cosmochimica Acta 125, pp. 186 - 195 (2014)

Keppler, F.; Harper, D. B.; Greule, M.; Ott, U.; Sattler, T.; Schöler, H. F.; Hamilton, J. T. G.: Chloromethane release from carbonaceous meteorite affords new insight into Mars lander findings. Scientific Reports 4, 7010 (2014)

Nadalig, T.; Greule, M.; Bringel, F.; Keppler, F.; Vuilleumier, S.: Probing the diversity of chloromethane-degrading bacteria by comparative genomics and isotopic fractionation. Frontiers in Microbiology 5, 523 (2014)

Polag, D.; Leiß, O.; Keppler, F.: Age dependent breath methane in the German population. Science of the Total Environment 481, pp. 582 - 587 (2014)

Polag, D.; Krapf, L.C.; Heuwinkel, H.; Laukenmann, S.; Lelieveld, J.; Keppler, F.: Stable carbon isotopes of methane for real-time process monitoring in anaerobic digesters. Engineering in Life Sciences (2013)

Nadalig, T.; Greule, M.; Bringel, F.; Vuilleumier, S.; Keppler, F.: Hydrogen and carbon isotope fractionation during degradation of chloromethane by methylotrophic bacteria. MicrobiologyOpen 2 (6), pp. 893 - 900 (2013)

Polag, D.; Heuwinkel, H.; Laukenmann, S.; Greule, M.; Keppler, F.: Evidence of anaerobic syntrophic acetate oxidation in biogas batch reactors by analysis of ¹³C carbon isotopes. Isotopes in Environmental and Health Studies 49 (3), pp. 365 - 377 (2013)

Wuerfel, O.; Greule, M.; Keppler, F.; Jochmann, M. A.; Schmidt, T. C.: Position-specific isotope analysis of the methyl group carbon in methylcobalamin for the investigation of biomethylation processes. Analytical and Bioanalytical Chemistry 405 (9), pp. 2833 - 2841 (2013)

Gori, Y.; Wehrens, R.; Greule, M.; Keppler, F.; Ziller, L.; La Porta, N.; Camin, F.: Carbon, hydrogen and oxygen stable isotope ratios of whole wood, cellulose and lignin methoxyl groups of Picea abies as climate proxies. Rapid Communications in Mass Spectrometry 27 (1), pp. 265 - 275 (2013)