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Compound-specific Isotope analysis of RDX and stable isotope fractionation during aerobic and anaerobic Bbiodegradation.
Environ. Sci. Technol. 42, 7772-7771 (2008)
Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is a common contaminant at explosives production sites. Here, we report on the use of compound-specific isotope analysis of RDX to obtain ?15N and ?18O enrichment factors during biodegradation in batch cultures. A new preparation method has been developed based on RDX purification using thin-layer chromatography. RDX is then subjected to an elemental analyzer coupled with an isotope-ratio mass spectrometer (EA-IRMS). The precision of the method shows standard deviations of 0.13‰ and 1.18‰ for ?15N and ?18O, respectively, whereas the accuracy of the method has been checked routinely, adhering to external standards. The method was applied to RDX samples subjected to biodegradation under aerobic or anaerobic conditions. Enrichment factors under aerobic conditions were -2.1‰ and -1.7‰ for ?15N and ?18O, respectively, and under anaerobic conditions, -5.0‰ and -5.3‰ for ?15N and ?18O, respectively. The results of this study provide a tool for monitoring natural attenuation of RDX in a contaminated environment.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
4.363
2.510
28
42
Anmerkungen
Besondere Publikation
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Sprache
englisch
Veröffentlichungsjahr
2008
HGF-Berichtsjahr
2008
ISSN (print) / ISBN
0013-936X
e-ISSN
1520-5851
Zeitschrift
Environmental Science & Technology
Quellenangaben
Band: 42,
Heft: 21,
Seiten: 7772-7771
Verlag
American Chemical Society (ACS)
Verlagsort
Washington, DC
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Groundwater Ecology (IGOE)
POF Topic(s)
20403 - Sustainable Water Management
Forschungsfeld(er)
Environmental Sciences
PSP-Element(e)
G-504300-004
Scopus ID
55349095420
Erfassungsdatum
2008-11-24