Publication Date


Document Type


Committee Members

Jason Deibel (Committee Member), Brent Foy (Committee Member), Ivan Medvedev (Advisor)

Degree Name

Master of Science (MS)


Terahertz spectroscopy, due to the high sensitivity and specificity that it affords, has been incorporated in many fields to aid in the chemical analysis of gases. One potential application is to detect bio-markers in human breath for early diagnosis. Our current aim of our research is to establish a relationship between several chemicals and the glucose levels from human exhaled breath. 20 chemical including Acetone, Carbon monoxide (CO), Methanol were studied. Volunteers' breath samples were processed through a pre-concentration system before being injected into the spectrometer. Initially, a commercial preconcentration system, Entech 7100A, was used. However, due to the limitations of Entech 7100A, a custom built pre-concentration system that incorporates a sorbent pack from Markes International Ltd. has been developed. The new preconcentration system and preliminary results on exhaled breath analysis are presented here.

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Department or Program

Department of Physics

Year Degree Awarded


Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

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