Studies of New Chemical Analysis Techniques.
Final rept. 1 Sep 75-30 Sep 79,
COLORADO UNIV AT BOULDER DEPT OF CHEMISTRY
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Results are reported from a trace level analysis research program enveloping volatile metal chelate chemistry, gas chromatography, and environmental analysis. The overall thrust of the program was to develop sensitive and selective analytical techniques for a variety of samples. The methods employed involved various combinations of sample collection and concentration, derivatization and separation, and, finally, detection. Examples of the measurements considered include molybdenum and aluminum by a metal chelate derivatizationatomic absorption spectrophotometric technique, polynuclear aromatic hydrocarbon concentration on open-pore polyurethane OPP followed by liquid chromatographic analysis, herbicide separation on OPP columns, and nitrate ion and nitrogen oxide analysis by a derivatizationelectron capture technique. A metal chelate containing material has been synthesized for use as a selective sorbent. The usefulness of the electron capture detector has been advanced by the addition of nitrous oxide to the carrier gas. With this technique, Selective Electron Capture Sensitization SECS, additional sensitivity has been found for many compounds which normally are not detected by the electron capture detector. Author
- Inorganic Chemistry
- Organic Chemistry