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Analytical Chemical Sensing Using High Resolution Terahertz/Submillimeter Wave Spectroscopy

Moran, Benjamin L.
http://rave.ohiolink.edu/etdc/view?acc_num=wright1346898198

Abstract Details

2012, Master of Science (MS), Wright State University, Physics.
A highly sensitive and selective Terahertz gas sensor used to analyze a complex mixture of Volatile Organic Compounds (VOCs) has been developed. To best demonstrate analytical capabilities of a THz chemical sensor, we chose to perform analytical quantitative analysis of a certified gas mixture using a prototype gas phase chemical sensor that couples a commercial preconcentration system (Entech 7100A) to a custom high resolution THz spectrometer. A Method TO-14A certified mixture of thirty-nine VOCs was purchased. Twenty-six of the thirty-nine chemicals were identified as suitable for THz spectroscopic detection. The Entech 7100A system is designed and marketed as an inlet system for Gas Chromatography Mass Spectrometry (GC-MS) instruments with a specific focus on TO-14A sampling methods and has been incorporated into our spectrometer. Its preconcentration efficiency is high for the thirty-nine chemicals in the mixture used for this study and our preliminary results confirm this for many of the selected VOCs. Presented are the results of this study which will serve as a basis for our ongoing research in environmental sensing and exhaled human breath.
Ivan Medvedev, PhD (Advisor)
Doug Petkie, PhD (Committee Member)
Gary Farlow, PhD (Committee Member)
65 p.
Physics
Breath Analysis; Rotational Spectroscopy; Terahertz; THz; Preconcentration; T0-14A; Submillimeter Wave Spectroscopy;

Recommended Citations

Citations

  • Moran, B. L. (2012). Analytical Chemical Sensing Using High Resolution Terahertz/Submillimeter Wave Spectroscopy [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1346898198

    APA Style (7th edition)

  • Moran, Benjamin. Analytical Chemical Sensing Using High Resolution Terahertz/Submillimeter Wave Spectroscopy. 2012. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1346898198.

    MLA Style (8th edition)

  • Moran, Benjamin. "Analytical Chemical Sensing Using High Resolution Terahertz/Submillimeter Wave Spectroscopy." Master's thesis, Wright State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1346898198

    Chicago Manual of Style (17th edition)

wright1346898198
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© 2012, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.