Abstract
A hollow core optical fiber gas sensor has been developed in combination with a Fourier transform infrared (FT-IR) spectrometer operating in the spectral range of 4000-500 cm -1, enabling continuous detection of small volume gas-phase analytes such as CH 4, CO 2, C 2H 5CI, or their mixtures at trace levels. Ag/Ag-halide hollow core optical fibers simultaneously serve as an optical waveguide for broad-band mid-infrared radiation and as a miniaturized absorption gas cell. Specifically, carbon dioxide, methane, and ethyl chloride as well as binary mixtures in a carrier gas were analyzed during exponential dilution experiments. In the studies reported here, the integration of an optical gas sensor with FT-IR spectroscopy provides excellent detection limits for small gas volumes (∼1.5 mL) of individual analytes at a few tens of parts per billion (ppb, vol/vol) for carbon dioxide and a few hundreds of ppb (vol/vol) for methane. Furthermore, the broad-band nature of the radiation source and of the hollow core optical waveguide provides the capability of multi-constituent analysis in mixtures.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 331-337 |
| Number of pages | 7 |
| Journal | Applied Spectroscopy |
| Volume | 63 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2009 |
| Externally published | Yes |
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Keywords
- Carbon dioxide
- Fourier transform infrared spectroscopy
- FT-IR spectroscopy
- Hollow waveguides
- Methane
- Mid-infrared sensors
- Trace gas sensing
ASJC Scopus subject areas
- Spectroscopy
- Instrumentation
Cite this
Mid-infrared trace gas analysis with single-pass fourier transform infrared hollow waveguide gas sensors. / Kim, Seong Soo; Menegazzo, Nicola; Young, Christina; Chan, James W; Carter, Chance; Mizaikoff, Boris.
In: Applied Spectroscopy, Vol. 63, No. 3, 03.2009, p. 331-337.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mid-infrared trace gas analysis with single-pass fourier transform infrared hollow waveguide gas sensors
AU - Kim, Seong Soo
AU - Menegazzo, Nicola
AU - Young, Christina
AU - Chan, James W
AU - Carter, Chance
AU - Mizaikoff, Boris
PY - 2009/3
Y1 - 2009/3
N2 - A hollow core optical fiber gas sensor has been developed in combination with a Fourier transform infrared (FT-IR) spectrometer operating in the spectral range of 4000-500 cm -1, enabling continuous detection of small volume gas-phase analytes such as CH 4, CO 2, C 2H 5CI, or their mixtures at trace levels. Ag/Ag-halide hollow core optical fibers simultaneously serve as an optical waveguide for broad-band mid-infrared radiation and as a miniaturized absorption gas cell. Specifically, carbon dioxide, methane, and ethyl chloride as well as binary mixtures in a carrier gas were analyzed during exponential dilution experiments. In the studies reported here, the integration of an optical gas sensor with FT-IR spectroscopy provides excellent detection limits for small gas volumes (∼1.5 mL) of individual analytes at a few tens of parts per billion (ppb, vol/vol) for carbon dioxide and a few hundreds of ppb (vol/vol) for methane. Furthermore, the broad-band nature of the radiation source and of the hollow core optical waveguide provides the capability of multi-constituent analysis in mixtures.
AB - A hollow core optical fiber gas sensor has been developed in combination with a Fourier transform infrared (FT-IR) spectrometer operating in the spectral range of 4000-500 cm -1, enabling continuous detection of small volume gas-phase analytes such as CH 4, CO 2, C 2H 5CI, or their mixtures at trace levels. Ag/Ag-halide hollow core optical fibers simultaneously serve as an optical waveguide for broad-band mid-infrared radiation and as a miniaturized absorption gas cell. Specifically, carbon dioxide, methane, and ethyl chloride as well as binary mixtures in a carrier gas were analyzed during exponential dilution experiments. In the studies reported here, the integration of an optical gas sensor with FT-IR spectroscopy provides excellent detection limits for small gas volumes (∼1.5 mL) of individual analytes at a few tens of parts per billion (ppb, vol/vol) for carbon dioxide and a few hundreds of ppb (vol/vol) for methane. Furthermore, the broad-band nature of the radiation source and of the hollow core optical waveguide provides the capability of multi-constituent analysis in mixtures.
KW - Carbon dioxide
KW - Fourier transform infrared spectroscopy
KW - FT-IR spectroscopy
KW - Hollow waveguides
KW - Methane
KW - Mid-infrared sensors
KW - Trace gas sensing
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UR - http://www.scopus.com/inward/citedby.url?scp=62849122266&partnerID=8YFLogxK
U2 - 10.1366/000370209787598924
DO - 10.1366/000370209787598924
M3 - Article
C2 - 19281649
AN - SCOPUS:62849122266
VL - 63
SP - 331
EP - 337
JO - Applied Spectroscopy
JF - Applied Spectroscopy
SN - 0003-7028
IS - 3
ER -