Details zur Publikation
Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1021/es900365x
Titel (primär) Stable carbon isotope fractionation of 1,2-Dichloropropane during dichloroelimination by Dehalococcoides populations
Autor Fletcher, K.E.; Löffler, F.E.; Richnow, H.-H.; Nijenhuis, I.
Quelle Environmental Science & Technology
Erscheinungsjahr 2009
Department ISOBIO
Band/Volume 43
Heft 18
Seite von 6915
Seite bis 6919
Sprache englisch
Abstract The isotope fractionation of 1,2-dichloropropane (1,2-D) during dichloroelimination to propene by Dehalococcoides populations was explored in laboratory experiments in order to provide data for the characterization of the fate of 1,2-D in heterogeneous subsurface systems. Compound specific stable carbon isotope analysis (CSIA) was used to determine the bulk enrichment factors (ebulk), reactive position specific enrichment factors (ereactive), and apparent kinetic isotope effect (AKIE) values for 1,2-D dichloroelimination in two distinct Dehalococcoides-containing cultures. The ebulk factors calculated in the two cultures were statistically identical, -10.8 ± 0.9 and -11.3 ± 0.8‰, even though the cultures were derived from geographically distinct locations. AKIE values for 1,2-D dichloroelimination assuming stepwise and concerted reaction mechanisms were approximately 1.033 and 1.017, respectively. These values are within the range of previously reported values for dichloroelimination reactions and were equivalent to values reported for biotic 1,2-dichloroethane and abiotic 1,1,2,2,-tetrachloroethane and pentachloroethane dichloroelimination reactions.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=167
Fletcher, K.E., Löffler, F.E., Richnow, H.-H., Nijenhuis, I. (2009):
Stable carbon isotope fractionation of 1,2-Dichloropropane during dichloroelimination by Dehalococcoides populations
Environ. Sci. Technol. 43 (18), 6915 - 6919 10.1021/es900365x