Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Pages | 58-69 |
| Number of pages | 12 |
| Publication status | Published - 1995 |
| Event | Optical Sensing for Environmental and Process Monitoring - McLean, VA, USA Duration: 6 Nov 1994 → 6 Nov 1994 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 2365 |
| ISSN (Print) | 0277-786X |
Abstract
A pulsed-molecular-beam Fabry-Perot cavity Fourier-transform microwave spectrometer developed at NIST has demonstrated sensitivities for many polar gas-phase molecular species in the low parts per million (ppm) to parts per billion (ppb) range. The highest sensitivity is obtained using neon or argon carrier gas but nitrogen or air can also be used, with some loss in sensitivity (up to 100 times) due to the less efficient rotational and vibrational cooling in the molecular beam with diatomic gases. The minimum detectable concentrations for several representative compounds are provided. These include acetaldehyde, acrolein, propionaldhyde, benzaldehyde, p-tolualdehyde, methanol, SO 2, propene, methyl t-butyl ether, ethyl t-butyl ether, and others. Considerable attention has been given to making the instrument versatile and user friendly. The instrument is computer controlled using standard GPIB interfaces and several graphical interfaces under the CPLUPLU operating system.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
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Proceedings of SPIE - The International Society for Optical Engineering. 1995. p. 58-69 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2365).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Using Fourier transform microwave spectroscopy to detect pollutants
AU - Lovas, F. J.
AU - Pereyra, W.
AU - Suenram, R. D.
AU - Fraser, G. T.
AU - Grabow, J. U.
AU - Hight Walker, A. R.
PY - 1995
Y1 - 1995
N2 - A pulsed-molecular-beam Fabry-Perot cavity Fourier-transform microwave spectrometer developed at NIST has demonstrated sensitivities for many polar gas-phase molecular species in the low parts per million (ppm) to parts per billion (ppb) range. The highest sensitivity is obtained using neon or argon carrier gas but nitrogen or air can also be used, with some loss in sensitivity (up to 100 times) due to the less efficient rotational and vibrational cooling in the molecular beam with diatomic gases. The minimum detectable concentrations for several representative compounds are provided. These include acetaldehyde, acrolein, propionaldhyde, benzaldehyde, p-tolualdehyde, methanol, SO 2, propene, methyl t-butyl ether, ethyl t-butyl ether, and others. Considerable attention has been given to making the instrument versatile and user friendly. The instrument is computer controlled using standard GPIB interfaces and several graphical interfaces under the CPLUPLU operating system.
AB - A pulsed-molecular-beam Fabry-Perot cavity Fourier-transform microwave spectrometer developed at NIST has demonstrated sensitivities for many polar gas-phase molecular species in the low parts per million (ppm) to parts per billion (ppb) range. The highest sensitivity is obtained using neon or argon carrier gas but nitrogen or air can also be used, with some loss in sensitivity (up to 100 times) due to the less efficient rotational and vibrational cooling in the molecular beam with diatomic gases. The minimum detectable concentrations for several representative compounds are provided. These include acetaldehyde, acrolein, propionaldhyde, benzaldehyde, p-tolualdehyde, methanol, SO 2, propene, methyl t-butyl ether, ethyl t-butyl ether, and others. Considerable attention has been given to making the instrument versatile and user friendly. The instrument is computer controlled using standard GPIB interfaces and several graphical interfaces under the CPLUPLU operating system.
UR - http://www.scopus.com/inward/record.url?scp=0029233149&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0029233149
SN - 0819417114
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 58
EP - 69
BT - Proceedings of SPIE - The International Society for Optical Engineering
T2 - Optical Sensing for Environmental and Process Monitoring
Y2 - 6 November 1994 through 6 November 1994
ER -