Publication Details
Category Text Publication
Reference Category Journals
DOI 10.1021/es900365x
Title (Primary) Stable carbon isotope fractionation of 1,2-Dichloropropane during dichloroelimination by Dehalococcoides populations
Author Fletcher, K.E.; Löffler, F.E.; Richnow, H.-H.; Nijenhuis, I.
Source Titel Environmental Science & Technology
Year 2009
Department ISOBIO
Volume 43
Issue 18
Page From 6915
Page To 6919
Language 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.
Persistent UFZ Identifier 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