Date of Award

Spring 1998

Document Type


Degree Name

Master of Science (MS)


Chemistry & Biochemistry



Committee Director

Edward J. Poziomek

Committee Member

Patricia A. Pleban

Committee Member

Roy L. Wiliams

Call Number for Print

Special Collections LD4331.C45 A67


The primary objective of this research is to develop an inexpensive and reliable method to generate vapor pulses of explosives using 2,4,6-trinitrotoluene TNTl for proof of concept. A secondary objective is to demonstrate the use of the vapor generator in various applications keeping in mind potential field scenarios involving explosives. A vapor generator/collector system was developed which gives reproducible pulses of TNT vapors at nanogram levels. The use of this technology was demonstrated in evaluating different surfaces for vapor adsorption of TNT in conjunction with ion mobility spectrometry as the primary analytical tool. Of the materials examined, Teflon was by far the best substrate for adsorption, retention, and subsequent recovery of TNT using ion mobility spectrometry for analysis.


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