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Integrated chemical and microorganism monitoring of air using gas chromatography/ion mobility spectometry: toward an expanded-use volatile organic analyzer (voa)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Eiceman, G. A. |
| Copyright Year | 1999 |
| Description | The work described in this research program originated with the choice by NASA of an ion mobility spectrometer for air quality monitoring on-board the international spacestation. Though the gas chromatograph-ion mobility spectrometer analyzer known as VOA met or exceeded expectations, limitations in the basic understanding of response and the utilization of foundational principles into usable technology was considered unacceptable. In this research program, a comprehensive model for the origins of mobility spectra was proposed, tested and verified. The principles considered responsible for the appearance of mobility spectra have now been elucidated through this project. This understanding has been applied in automated identification of mobility spectra using neural networks and routine procedures for this now exist. Finally, the limitation on linear range has been shown to be a technical limitation and not a fundamental limitation so that a hardware component was crafted to extend the linear range of a mobility spectrometer by 10X. This project has led to one Ph.D. dissertation and one MS thesis. In addition, over ten public presentations at professional meetings and six journal publications have resulted from this program of research. The findings are so plentiful that total analysis of the findings may require four to six years or more. The findings confirm that the decision to use VOA was sound and that the chemical and physical principles of mobility spectrometry are both understandable and predictable. |
| File Size | 620752 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19990064524 |
| Archival Resource Key | ark:/13960/t6935s320 |
| Language | English |
| Publisher Date | 1999-07-15 |
| Access Restriction | Open |
| Subject Keyword | Inorganic And Physical Chemistry Gas Chromatography Microorganisms Ion Mobility Spectroscopy Neural Nets Spectrometers Selection Air Quality Models Research Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
