Unusual polar metabolites in the groundwater of a contaminated waste site indicate a new pathway of mononitrotoluene transformation

Preiß, A.; Berger‐Preiß, Edith; Elend, Manfred; Reineke, Anne-Kirsten; Hollender, Juliane

doi:10.1016/j.chemosphere.2011.05.020

Cited by 5 publications

(4 citation statements)

References 26 publications

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“…Combining in-line solid-phase extraction (SPE) has improved detection limits and permits NMR to be performed with deuterated solvents and MS with protonated solvents to optimize both techniques. Such approaches have already proved useful for the nontarget analysis of wastewater and identifying novel transformation products of mononitrotoluenes . The limitations for solving the structural components in the most complex environmental mixtures such as dissolved organic matter arise in large part from the lack of chromatographic separation rather than NMR or MS limitations .…”

Section: Discussionmentioning

confidence: 99%

“…Such approaches have already proved useful for the nontarget analysis of wastewater 75 and identifying novel transformation products of mononitrotoluenes. 76 The limitations for solving the structural components in the most complex environmental mixtures such as dissolved organic matter arise in large part from the lack of chromatographic separation rather than NMR or MS limitations. 45 More development is required into advanced separations such as 2D GC, 2D HPLC, 2D CE, and combinations thereof.…”

Section: ■ Conclusion and Future Directionsmentioning

confidence: 99%

See 1 more Smart Citation

Nuclear Magnetic Resonance Spectroscopy and Its Key Role in Environmental Research

Simpson

Soong

2012

Environ. Sci. Technol.

113

127

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Nuclear magnetic resonance (NMR) is arguably the most powerful and versatile tool in modern science. It has the capability to solve complex structures and interactions in situ even in complex heterogeneous multiphase samples such as soil, plants, and tissues. NMR has vast potential in environmental research and can provide insight into a diverse range of environmental processes at the molecular level be it identifying the binding site in human blood for a specific contaminant or the compositional dynamics of soil with climate change. Modern NMR-based metabonomics is elucidating contaminant toxicity and toxic mode of action rapidly and at sub lethal concentrations. Combined modern NMR approaches provide a powerful framework to better understand carbon cycling and sustainable agriculture, as well as contaminant fate, bioavailability, toxicity, sequestration, and remediation.

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Section: Discussionmentioning

confidence: 99%

Section: ■ Conclusion and Future Directionsmentioning

confidence: 99%

Nuclear Magnetic Resonance Spectroscopy and Its Key Role in Environmental Research

Simpson

Soong

2012

Environ. Sci. Technol.

113

127

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“…Preiss, in 2011, identified unusual polar metabolites, such as aminotoluenes, nitrobenzoic acids and three unknown di and tetra hydro‐derivatives of 2‐oxo‐quinolin‐3‐yl acetic acid, in the groundwater of a contaminated waste site. The identification of such compounds indicates a new pathway of mononitrotoluene transformation by means of LC‐MS, LC‐NMR and further off‐line NMR and MS techniques.…”

Section: Nmr Applied To the Study Of Wastewatermentioning

confidence: 99%

Advancements in waste water characterization through NMR spectroscopy: review

Filho

Silva

Ferreira

2014

Magnetic Reson in Chemistry

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There are numerous organic pollutants that lead to several types of ecosystem damage and threaten human health. Wastewater treatment plants are responsible for the removal of natural and anthropogenic pollutants from the sewage, and because of this function, they play an important role in the protection of human health and the environment. Nuclear magnetic resonance (NMR) has proven to be a valuable analytical tool as a result of its versatility in characterizing both overall chemical composition as well as individual species in a wide range of mixtures. In addition, NMR can provide physical information (rigidity, dynamics, etc.) as well as permit in depth quantification. Hyphenation with other techniques such as liquid chromatography, solid phase extraction and mass spectrometry creates unprecedented capabilities for the identification of novel and unknown chemical species. Thus, NMR is widely used in the study of different components of wastewater, such as complex organic matter (fulvic and humic acids), sludge and wastewater. This review article summarizes the NMR spectroscopy methods applied in studies of organic pollutants from wastewater to provide an exhaustive review of the literature as well as a guide for readers interested in this topic.

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“…64.35 ng/L),terbuthylazine-desethyl (22.28 to 292.36 ng/L) and terbuthylazine (22.49 to 369.33 ng/L) Preiss et al (2011). found three new metabolites (di-and tetrahydro-…”

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confidence: 94%