Application of NMR spectroscopy to environmental analysis: detection of trace amounts of chemical warfare agents and related compounds in organic extract, water, and sand

Article Abstract:

An international trial and proficiency test of laboratory performance provided for the investigation of trace amounts of chemical warfare agents and related compounds in trace amounts in a variety of samples. Organic extracts, water, sand samples and other materials were examined with the use of NMR spectroscopy to determine the presence of bis(2-chloroethyl)ethylamine (HN-1) and other related compounds. It was proven that NMR spectroscopy, especially a high field spectrometer, could be ideally used in identifying the chemical warfare agents that are present in trace amounts in a variety of environmental samples.

Analytical Laboratory Instrument Manufacturing, Analytical instruments, Chemical Weapons, Research, Methods, Usage, Nuclear magnetic resonance spectroscopy, Trace analysis

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Environmental implications on the oxygenation of gasoline with ethanol in the metropolitan area of Mexico City

Article Abstract:

Tests performed in Mexico City, Mexico on multiples types of light-duty vehicles using ethanol fuel instead of MTBE predict a major decrease in toxic emissions by 2010. The article includes multiple tables and graphs in support of policy action to this end.

Science & research, Mexico, Ethyl Alcohol Manufacturing, Ethanol Fuel, Statistical Data Included, Environmental aspects, Illustration, Alcohol fuels, Mexico City, Mexico, Ethanol fuels

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Detection of chlorodifluoroacetic acid in precipitation: a possible product of fluorocarbon degradation

Article Abstract:

Snow w and rain samples from various regions of Canada were found to contain chlorodifluoroacetic acid (CDFA).

Canada, Acetic Acid, Chloroacetic Acid, Brief Article, Chemical industry, Chloroacetic acids

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