PuSH - Publikationsserver des Helmholtz Zentrums München: Carbon and chlorine isotope fractionation patterns associated with different engineered chloroform transformation reactions.

Informationen

Hinweise zu Qualitätskriterien von Zeitschriften

Open-Access-Richtlinie der Helmholtz-Gemeinschaft 2016

CC Licencences

Metriken für Publikationen

Navigation

Startseite

English

EVA: Veröffentlichen

Neuer EVA Antrag

Recherche

Erweiterte Suche

Durchblättern nach ...

... HMGU-Autoren/Konsortien

... Organisationsstruktur

... Zeitschriften

... Publikationstypen

... Forschungsdaten

... Arbeitsgruppen

... Erscheinungsjahr

Publikationen im Überblick

Statistik

HGF Fortschrittsbericht

OA Publikationen

Eintragen

Neue Publikation eintragen

Neue Publikation holen aus...

...EVA

Fehlende Publikation melden

Highlights

Suche

Hilfe & Kontakt

Ansprechpartner

Hilfe

Datenschutz

Helmholtz Open Science

Bibliometrische Indikatoren

SHERPA/RoMEO

DOAJ

Export:

Text

Endnote (RIS) BIB

BibTeX

Torrentó, C.* ; Palau, J.* ; Rodríguez-Fernández, D.* ; Heckel, B. ; Meyer, A.H. ; Domènech, C.* ; Rosell, M.* ; Soler, A.* ; Elsner, M. ; Hunkeler, D.*

Carbon and chlorine isotope fractionation patterns associated with different engineered chloroform transformation reactions.

Environ. Sci. Technol. 51, 6174-6184 (2017)

DOI

PMC

Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.

Abstract
Metriken
Zusatzinfos

To use compound-specific isotope analysis for confidently [GRAPHIC] assessing organic contaminant attenuation in the environment, isotope fractionation patterns associated with different transformation mechanisms must first be explored in laboratory experiments. To deliver this information for the common groundwater contaminant chloroform (CF), this study investigated for the first time both carbon and chlorine isotope fractionation for three different engineered reactions: oxidative C-H bond cleavage using heat-activated persulfate, transformation under alkaline conditions (pH similar to 12) and reductive CCl bond cleavage by cast zerovalent iron, Fe(0). Carbon and chlorine isotope fractionation values were -8 +/- 1 parts per thousand and -0.44 +/- 0.06 parts per thousand for oxidation, -57 +/- 5 parts per thousand and -4.4 +/- 0.4 parts per thousand for alkaline hydrolysis (pH 11.84 +/- 0.03), and -33 +/- 11 parts per thousand and -3 +/- 1 parts per thousand for dechlorination, respectively. Carbon and chlorine apparent kinetic isotope effects (AKIEs) were in general agreement with expected mechanisms (CH bond cleavage in oxidation by persulfate, CCl bond cleavage in Fe(0)-mediated reductive dechlorination and E1(CB) elimination mechanism during alkaline hydrolysis) where a secondary AKIE(Cl) (1.00045 +/- 0.00004) was observed for oxidation. The different dual carbon-chlorine (Delta delta C-13 vs Delta delta Cl-37) isotope patterns for oxidation by thermally activated persulfate and alkaline hydrolysis (17 +/- 2 and 13.0 +/- 0.8, respectively) vs reductive dechlorination by Fe(0) (8 +/- 2) establish a base to identify and quantify these CF degradation mechanisms in the field.

Impact Factor

Scopus SNIP

Web of Science
Times Cited

Scopus
Cited By

Altmetric

6.198

1.889