Abstract
This project was funded for a total of $92,946 for the period from 2/16/99 to 2/15/01. We studied extraction efficiency of organic substances from water matrices using spray chambers that were designed and constructed in our laboratories. A number of parameters that were hypothesized to affect the rate of removal of these compounds were studied, including chamber volume, extraction gas flow rate, sample volume, temperature, chamber pressure, physical and chemical properties of the analytes, and the properties of the aqueous matrix. The removal rates isolated from transport times of the flowing analytes after they had been extracted. In some cases, spray extraction was compared to membrane techniques for removal of organic compounds from water. These studies were performed in collaboration with colleagues from Los Alamos National Laboratory. In each of the summers of 1999 and 2000, two students from the University of North Dakota traveled to LANL to perform part of this research.
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