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Performance evaluation soil samples utilizing encapsulation technology

United States Patent

5,939,324
August 17, 1999
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
Performance evaluation soil samples and method of their preparation using encapsulation technology to encapsulate analytes which are introduced into a soil matrix for analysis and evaluation by analytical laboratories. Target analytes are mixed in an appropriate solvent at predetermined concentrations. The mixture is emulsified in a solution of polymeric film forming material. The emulsified solution is polymerized to form microcapsules. The microcapsules are recovered, quantitated and introduced into a soil matrix in a predetermined ratio to form soil samples with the desired analyte concentration.
Dahlgran; James R. (Idaho Falls, ID)
The United States of America as represented by the United States (Washington, DC)
08/ 982,894
December 2, 1997
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to employee/employer relationship of the inventor to the United States Department of Energy at the Radiological and Environmental Sciences Laboratory, Idaho Falls, Id.