Aston E. Tennefoss

        My research during the 2007-2008 school year is an extension of work I performed over the previous summer while interning at Millennium Inorganic Chemicals in Maryland. During the summer, I performed analyses of surface energies for various titanium dioxide pigments produced by the company. I used the KRÜSS DSA 100 and the method of Drop Shape Analysis to generate results.

        I am currently using the method of Inverse Gas Chromatography (IGC) to analyze the same pigments I considered during my summer work. IGC uses the same principle as chromatography, with a vapor flowing past a solid packed into a column, but the solid substance possesses the unknown properties, not the vapor. The purpose of the current research is to generate a surface energy value for the pigments by adsorption as a comparison to the previously used sessile drop method.


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astont@u.washington.edu