Studies of New Chemical Analysis Techniques.
Abstract
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 derivatization/atomic 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 derivatization/electron 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1979
- Accession Number
- ADA080203
Entities
People
- Robert E. Sievers
Organizations
- University of Colorado Boulder