| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6311727 | Chemosphere | 2011 | 8 Pages |
At a mononitrotoluene-contaminated waste disposal site, the groundwater was screened for polar transformation products of mononitrotoluenes, by means of HPLC-MS, HPLC-NMR and further off-line NMR and MS techniques. Besides expected metabolites such as aminotoluenes (ATs) and nitrobenzoic acids (NBAs), three unknowns (di- and tetrahydro-derivatives of (2-oxo-quinolin-3-yl) acetic acid) could be identified which, in the context of explosives and related compounds, are new metabolites. Evidence could be provided by microcosm experiments with 2-nitrotoluene (2-NT) that these metabolites are microbial transformation products of 2-NT under anaerobic conditions. The NMR and MS data are presented and the possible pathway for the formation of these metabolites after addition of 2-NT to fumarate is discussed.
⺠The groundwater of a mononitrotoluene-contaminated waste disposal site was analyzed. ⺠Among other compounds (di- and tetrahydro-derivatives of (2-oxo-quinolin-3-yl)acetic acid) were identified. ⺠Microcosm experiments confirmed that these are metabolites of 2-nitrotoluene. ⺠A possible pathway for the formation of these transformation products is discussed.
