Characterization of predominant reductants in an anaerobic leachate-contaminated aquifer by nitromatic probe compounds

Article Abstract:

Nitroaromatic compounds (NACs) proved useful in the characterization of predominant reductants such as Fe(II) in an anaerobic leachate-contaminated aquifer. The NACs were transformed into aromatic amines within 2-70 days in the leachate plume as well as in microbially active and microbially deactivated experiments. Results revealed that Fe(II) associated with ferric iron minerals can be used as a highly reactive reductant in anaerobic aquifers.

Research and Development in the Physical, Engineering, and Life Sciences, Iron Compounds NEC, Water Pollution Control R&D, Water pollution, Oxidation-reduction reaction, Oxidation-reduction reactions, Iron compounds, Water pollution research

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A method for the measurement of atmospheric HONO based on DNPH derivatization and HPLC analysis

Article Abstract:

A sensitive technique for measuring atmospheric HONO based on aqueous scrubbing is examined. Issues concerning coil samplers, high-performance liquid chromatography, and derivatization with 2,4-dinitrophenylhydrazine are reviewed.

Pollutants produced & recycled, Atmospheric chemistry, Tropospheric chemistry

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Detection of nitrous acid by cavity ring-down spectroscopy

Article Abstract:

A research report examines the techniques involved in detecting nitrous acid in its gaseous state through the use of cavity ring-down spectroscopy.

Usage, Illustration, Spectrum analysis, Spectroscopy, Acids

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