Groundwater Contaminations –
The Use Of LC-NMR And LC-MS To Characterize
The Scope Of Polar Contaminants
Author(s)
A. Preiss, M. Elend, S. Gerling, E. Berger-Preiss,
A.-K. Reineke & J. Hollender
Abstract
Organic pollutants that are released into the environment are subjected to various
chemical, photochemical and microbiological transformation processes. As a
result, a variety of new and unexpected transformation products can be formed
and, as a rule, they are more polar than the parent compounds. While the parent
compounds and some of their known metabolites are analyzed with optimized
analytical methods (target analysis) unknown transformation products and
metabolites have often been overlooked in the past. Today, the combined use of
LC-NMR and LC-MS techniques offer the possibility to identify unknown
compounds in environmental samples routinely (non-target analysis). General
aspects of this new analytical approach are discussed and examples of
application are reported, which cover the characterization of polar explosives and
related compounds in groundwater samples from ammunition waste sites. Via
the example of biodegradation of mononitrotoluenes, it is further shown how
non-target analysis can complement the investigation of the fate of
environmental pollutants.
Keywords: non-target analysis, LC-NMR, LC-MS, explosives and related
compounds.
Keywords
non-target analysis, LC-NMR, LC-MS, explosives and related
compounds.
Related Book
Other papers in this volume
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